Publications

Collected Papers
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	Representation numbers of certain quaternary quadratic forms in a genus consisting of a single class, International Journal of Number Theory 12(6) (2016), 1529-1573. (with Ayse Alaca and Saban Alaca)
	Quartic residuacity and the quadratic character of certain quadratic irrationalities, International Journal of Number Theory 11(8) (2015), 2487-2503. (with Ronald J. Evans)
	Some new evaluations of the Legendre symbol (a+bsqrt(q)/p), Acta Arithmetica 170(4) (2015), 361-380. (with Lerna Pehlivan)
	Historical remark on a theorem of Zhang and Yue, Journal of Number Theory 147 (2015), 691-693.
	Lifting monogenic cubic fields to monogenic sextic fields, Kodai Mathematical Journal 34 (2011), 410-425. (with M. J. Lavallee and B. K. Spearman)
	A normal relative integral basis for the normal closure of a pure cubic field over Q(√-3), International Journal of Contemporary Mathematical Sciences 3 (2008), 1427-1432. (with B. K. Spearman)
	Indices of integers in cyclic cubic fields, International Mathematical Forum 3 (2008), 1595-1606.(with B. K. Spearman)
	The simplest D4-octics, International Journal of Algebra 2 (2008), 79-89.(with B. K. Spearman)
	A number field with infinitely many normal integral bases, Fibonacci Quarterly 45 (2007), 151-154. (with D. Eloff and B. K. Spearman)
	The conductor of Lecacheux's parametric family of cyclic quintic fields, Indian Journal of Pure and Applied Mathematics 38 (2007), 231-240. (with A. K. Silvester and B. K. Spearman)
	A4-sextic fields with a power basis, Missouri Journal of Mathematical Sciences 19 (2007), 188-194. (with D. Eloff and B. K. Spearman)
	On the common index divisors of a dihedral field of prime degree, Int. J. Math. Math. Sci. 2007 (2007), 1-8. (with B.K. Spearman and Q. Yang)
	Reducibility and the Galois group of a parametric family of quintic polynomials, Missouri J. of Math. Sci. 19 (2007), 2-10. (with M. J. Lavallee and B. K. Spearman)
	Integral bases for an infinite family of cyclic quintic fields, Asian J. Math. 10 (2006), 765-772. (with D. Eloff and B. K. Spearman)
	The prime ideal factorization of 2 in pure quartic fields with index 2, Math. J. Okayama Univ. 48 (2006), 43-46. (with B. K. Spearman)
	The proportion of cyclic quartic field discriminants divisible by a given prime, Kobe J. Math. 23 (2006), 1-10. (with B. K. Spearman)
	Cyclic cubic fields of given conductor and given index, Canad. Math. Bull. 49 (2006), 472-480. (with A. K. Silvester and B. K. Spearman)
	Explicit decomposition of a rational prime in a cubic field, Int. J. Math. Math. Sci. 2006 (2006), 1-11. (S. Alaca and B. K. Spearman)
	On the distribution of cyclic cubic fields with index 2, Int. J. Number Theory 2 (2006), 235-247. (with B. K. Spearman)
	Cyclic quartic fields with a unique normal integral basis, Far East J. Math. Sci. 21 (2006), 235-240. (with B. K. Spearman)
	On the number of representations of n by ax² + bxy + cy², Acta Arith. 122 (2006), 101-171. (with Z.-H. Sun)
	PSL(2,5) sextic fields with a power basis, Kodai Math. J. 29 (2006), 5-12. (with B. K. Spearman and A. Watanabe)
	Dihedral quintic fields with a power basis, Math. J. Okayama Univ. 47 (2005), 75-79. (with M. J. Lavallee, B. K. Spearman, and Q. Yang)
	Irreducible quartic polynomials with factorizations modulo p, Amer. Math. Monthly 112 (2005), 876-890. (with E. Driver and P. A. Leonard)
	On the Lagrange resolvents of a dihedral quintic polynomial, Int. J. Math. Math. Sci. 69 (2004), 3817-3820. (with B. K. Spearman)
	The factorization of 2 in cubic fields with index 2, Far East J. Math. Sci. 14 (2004), 273-282. (with S. Alaca and B. K. Spearman)
	An extension of Vulakh's theorem on units in complex cubic fields, Far East J. Math. Sci. 14 (2004), 1-7.
	The proportion of cyclic quartic fields with discriminant divisible by a given prime, Proc. Japan Acad. Ser. A Math. Sci. 80 (2004), 141-145. (with B. K. Spearman)
	Normal integral bases for Emma Lehmer's parametric family of cyclic quintics, J. Théor. Nombres Bordeaux 16 (2004), 215-220. (with B. K. Spearman)
	On the number of representations of a positive integer by a binary quadratic form, Acta. Arith. 114 (2004), 87-98. (with P. Kaplan)
	On Voronoi's method for finding an integral basis of a cubic field, Util. Math. 65 (2004), 163-166. (with S. Alaca).
	p-Integral bases of a quartic field defined by a trinomial x⁴ + ax + b, Far East J. Math. Sci. 12 (2004), 137-168. (with S. Alaca).
	On real cubic fields with a unique fundamental unit, Far East J. Math. Sci. 12 (2004), 1-7.
	Congruences for quadratic units of norm -1, Ramanujan J. 7 (2003), 449-453. (with R. J. Evans and P. Kaplan)
	A simple method for finding an integral basis of a quartic field defined by a trinomial x⁴+ax+b, JP J. Algebra Number Theory Appl. 3 (2003), 477-505. (with S. Alaca).
	The index of a cyclic quartic field, Monatsh. Math. 140 (2003), 19-70. (with B. K. Spearman)
	The discriminant of a cyclic field of odd prime degree, Rocky Mountain J. Math. 33 (2003), 1101-1122. (with B. K. Spearman).
	The 2-power degree subfields of the splitting fields of polynomials with Frobenius Galois groups, Comm. Algebra 31 (2003), 4745-4763. (with B. K. Spearman and Q. Yang)
	A relative integral basis over Q(√-3) for the normal closure of a pure cubic field, Int. J. Math. Math. Sci. 25 (2003), 1623-1626. (with B.K. Spearman)
	The index of a dihedral quartic field, JP J. Algebra Number Theory Appl. 3 (2003), 121-144. (with A. K. Silvester and B. K. Spearman).
	Density of integers which are discriminants of cyclic cubic fields, Far East J. Math. Sci. 8 (2003), 83-87. (with B. K. Spearman)
	Cubic fields with index 2, Monatsh. Math. 134 (2002), 331-336. (with B. K. Spearman)
	The discriminant of a dihedral quintic field defined by a trinomial x⁵ + ax + b, Canad. Math. Bull. 45 (2002), 138-153. (with B. K. Spearman)
	The genera representing a positive integer, Acta Arith. 102 (2002), 353-361. (with P. Kaplan)
	On the density of cyclic quartic fields, Canad. Math. Bull. 44 (2001), 97-104. (with Z. M. Ou)
	Integers which are discriminants of bicyclic or cyclic quartic fields, JP J. Algebra Number Theory Appl. 1 (2001), 179-194. (with B.K. Spearman)
	Cubic fields with a power basis, Rocky Mountain J. Math. 31 (2001), 1103-1109. (with B. K. Spearman)
	The cubic congruence x³+Ax²+Bx+C = 0 (mod p) and binary quadratic forms II, J. London Math. Soc. 64 (2001), 273-274. (with B. K. Spearman)
	Quartic trinomials with Galois groups A₄ and V₄, Far East J. Math. Sci. 2 (2000), 665-672. (with B. K. Spearman)
	Dihedral quintic polynomials and a theorem of Galois, Indian J. Pure Appl. Math. 30 (1999), 839-845. (with B. K. Spearman)
	Cyclic quartic subfields of the splitting field of a quintic trinomial x⁵ + ax + b with Galois group F₂₀, Far East J. Math. Sci. 1 (1999), 659-667. (with B. K. Spearman)
	DeMoivre's quintic and a theorem of Galois, Far East J. Math. Sci. 1 (1999), 137-143. (with B. K. Spearman)
	Cyclic quartic fields and F₂₀ quintics, Far East J. Math. Sci. 1 (1999), 121-126. (with B. K. Spearman)
	An explicit integral basis for a pure cubic field, Far East J. Math. Sci. 6 (1998), 1-14. (with B. K. Spearman)
	Quadratic subfields of the splitting field of a dihedral quintic trinomial x⁵ + ax + b, New Zealand J. Math. 26 (1997), 293-299. (with B. K. Spearman and L. Y. Spearman)
	The conductor of a cyclic quartic field using Gauss sums, Czechoslovak Math. J. 47 (1997), 453-462. (with B. K. Spearman)
	On a formula of Dirichlet, Far East J. Math. Sci. 5 (1997), 153-157. (with P. Kaplan)
	Normal relative integral bases for quartic fields over quadratic subfields, Kodai Math. J. 19 (1996), 293-307. (with B. K. Spearman)
	Discriminant of the normal closure of a dihedral quartic field, Arch. Math. (Basel) 67 (1996), 290-295. (with J. G. Huard and B. K. Spearman)
	The intersection of two cyclotomic extensions of a quadratic field, Kyungpook Math. J. 36 (1996), 117-124. (with B. K. Spearman)
	On solvable quintics X⁵ + aX + b and X⁵ + aX² + b, Rocky Mountain J. Math. 26 (1996), 753-772. (with B. K. Spearman)
	Relative integral bases for quartic fields over quadratic subfields, Acta Math. Hungar. 70 (1996), 185-192. (with B. K. Spearman)
	The conductor of a cyclic quartic field, Publ. Math. Debrecen 48 (1996), 13-43. (with B. K. Spearman)
	An arithmetic approach to the Davenport-Hasse relation over GF(p), Rocky Mountain J. Math. 25 (1995), 1341-1350. (with J. G. Huard and B. K. Spearman)
	On the set of primes p which split x³ + B modulo p, Indian J. Pure Appl. Math 26 (1995), 301-308. (with J. G. Huard and B. K. Spearman)
	Unramified quadratic extensions of a quadratic field, Rocky Mountain J. Math. 25 (1995), 783-788. (with B. K. Spearman)
	The subfields of the splitting field of a solvable quintic trinomial x⁵ + aX + b, J. Math. Sci. (Calcutta) 6 (1995), 15-18. (with B. K. Spearman and L. Y. Spearman)
	Integral bases for quartic fields with quadratic subfields, J. Number Theory 51 (1995), 87-102. (with J. G. Huard and B. K. Spearman)
	Predictive criteria for the representation of primes by binary quadratic forms, Acta Arith. 70 (1995), 215-278. (with J. B. Muskat and B. K. Spearman)
	The primes for which an abelian cubic splits, Tokyo J. Math. 17 (1994), 467-478. (with J. G. Huard and B. K. Spearman)
	Representation of primes by the principal form of negative discriminant D when h(D) is 4, Tamkang Journal of Mathematics 25 (1994), 321-334. (with D. Liu)
	A short proof of the formula for the conductor of an abelian cubic field, Norske Vid. Selsk. Skr. 2 (1994), 3-8. (with J. G. Huard and B. K. Spearman)
	Representation of primes in arithmetic progression by binary quadratic forms, J. Number Theory 45 (1993), 61-67. (with P. Kaplan)
	The cubic congruence x³ + Ax² + Bx + C = 0 (mod p) and binary quadratic forms, Journal of the London Mathematical Society 46 (1992), 397-410. (with B. K. Spearman)
	The squareroot of an ambiguous form in the principal genus, Proc. Edinburgh Math. Soc. 36 (1992), 145-150. (with K. Hardy)
	Representing primes by binary quadratic forms, Amer. Math. Monthly 99 (1992), 423-426. (with B. K. Spearman)
	Determination of modulo p, Acta Arithmetica 61 (1992), 161-172. (with K. Hardy)
	Infrastructure des classes ambiges d'idéaux des ordres des corps quadratiques réels, Enseign. Math. 37 (1991), 263-292. (with F. Halter-Koch, P. Kaplan, and Y. Yamamoto)
	On Yamamoto's reciprocity law, Proc. Amer. Math. Soc. 111 (1991), 607-609.
	Representation of primes by the principal form of discriminant -D when the classnumber h(-D) is 3, Acta Arithmetica 57 (1991), 131-153. (with R. H. Hudson)
	On an assertion of Ramanujan concerning binary quadratic forms, J. Number Theory 38 (1991), 118-133.
	The distance between ideals in the orders of a real quadratic field, Enseign. Math. 36 (1990), 321-358. (with P. Kaplan)
	On Eisenstein's problem, Acta Arithmetica 54 (1990), 323-345. (with N. Ishii and P. Kaplan)
	The class number of pairs of positive-definite binary quadratic forms, Acta Aritmetica 52 (1989), 103-117. (with K. Hardy)
	The integers of a cyclic quartic field, Rocky Mountain J. Math. 20 (1990), 145-150. (with R. H. Hudson)
	The representation of a pair of integers by a pair of positive-definite binary quadratic forms, Proc. Amer. Math. Soc. 105 (1989), 847-855. (with K. Hardy and P. Kaplan)
	Explicit evaluation of certain Eisenstein sums, in Number Theory, Proceedings of the First Conference of the Canadian Number Theory Association, Banff, Alberta, April 17-27, 1988, pp. 553-626, de Gruyter, Berlin, 1990. (with K. Hardy and B. K. Spearman, and the assistance of N. Buck and I. deMille)
	Cyclic quartic fields with relative integral bases over their quadratic subfields, Proc. Amer. Math. Soc. 103 (1988), 687-694. (with B. K. Spearman)
	The class number two problem for certain quartic fields, Sixteenth Manitoba Conference on Numerical Mathematics and Computing, Winnipeg, Manitoba, 1986, Congr. Numer. 56 (1987), 63-70.
	Calculation of the class numbers of imaginary cyclic quartic fields, Math. Comp. 49 (1987), 615-620. (with K. Hardy, R. H. Hudson, D. Richman, and N. M. Holtz)
	The cyclotomic numbers of order fifteen, Math. Comp. 48 (1987), 67-83. (with N. Buck, L. Smith, and B. K. Spearman)
	Congruences modulo 16 for the class numbers of complex quadratic fields, J. Number Theory 27 (1987), 178-195. (with K. Hardy)
	Cyclotomy of order twelve over GF(p²), p² ≡ 1 (mod 12), Math. Comp. 48 (1987), 444-446. (with J. B. Muskat)
	A congruence relating the class numbers of complex quadratic fields, Acta Arith. 47 (1986), 263-276. (with K. Hardy)
	Cyclotomy of order 15 over GF(p²), p=4, 11 (mod 15), Internat. J. Math. Math. Sci. 9 (1986), 665-704. (with C. Friesen, J. B. Muskat and B. K. Spearman)
	Cycles d'ordre au moins 16 dans le deux groupe des classes d'ideaux au sens strict de corps quadratiques, Proceedings of the International Conference on Class Numbers and Fundamental Units of Algebraic Number Fields, June 24-28, 1986, Katata, Japan, pp. 189-203, Nagoya University, Nagoya, Japan, 1986. (with P. Kaplan)
	The class number two problem for certain quartic fields, Proceedings of the Symposium on Algebraic Number Theory, Kyoto University, Japan, June 22-July 3, 1986, pp. 51--59.
	Calculation of the class numbers of certain quartic fields, Proceedings of the International Conference on Class Numbers and Fundamental Units of Algebraic Number Fields, June 24-28, 1986, Katata, Japan, pp. 139-150.
	Divisibilite par 16 du nombre des classes au sens strict des corps quadratiques reels dont le deux-groupe des classes est cyclique, Osaka J. Math. 23 (1986), 479-489. (with P. Kaplan and K. Hardy)
	On the solvability of the diophantine equation dV² - 2eVW - dW² = 1, Pacific J. Math. 124 (1986), 145-158. (with K. Hardy)
	A simple proof of Eisenstein's reciprocity law from Stickelberger's theorem, Indian J. Pure Appl. Math. 17 (1986), 169-174. (with B. K. Spearman)
	Another proof of Eisenstein's law of cubic reciprocity and its supplement, Rocky Mountain J. Math. 16 (1986), 395-402. (with C. Friesen and B. K. Spearman)
	Pell's equations x² - my² = -1, -4 and continued fractions, J. Number Theory 23 (1986), 169-182. (with P. Kaplan)
	A congruence for the index of a unit of a real abelian number field, Acta. Arith. 46 (1985), 57-72. (with K. Hardy)
	On the evaluation of the Legendre symbol (^{A + B√m}⁄_p), Acta Arith. 45 (1985), 255-272. (with K. Hardy and C. Friesen)
	Criteria for biquadratic residuacity modulo a prime p involving quaternary representations of p, Canad. J. Math. 37 (1985), 337-370. (with C. Friesen and L. J. Howe)
	Remark on the class number of Q(√2p) modulo 8 for p≡5(mod 8) a prime, Proc. Amer. Math. Soc. 93 (1985), 198-200. (with C. Friesen)
	An application of dihedral fields to representations of primes by binary quadratic forms, Acta Arith. 44 (1984), 407-413. (with P. Kaplan and Y. Yamamoto)
	Extension of a theorem of Cauchy and Jacobi, J. Number Theory 19 (1984), 309-340. (with D. A. Buell and R. H. Hudson)
	On the strict class number of Q(√2p) modulo 16, p≡1(mod 8) prime, Osaka J. Math. 21 (1984), 23-29. (with P. Kaplan)
	Binomial coefficients and Jacobi sums, Trans. Amer. Math. Soc. 281 (1984), 431-505. (with R. H. Hudson)
	Extensions of theorems of Cunningham-Aigner and Hasse-Evans, Pacific J. Math. 104 (1983), 111-132. (with R. H. Hudson)
	Congruences for representations of primes by binary quadratic forms, Acta Arith. 41 (1982), 311-322. (with R. H. Hudson)
	An application of a formula of Western to the evaluation of certain Jacobsthal sums, Acta Arith. 41 (1982), 261-276. (with R. H. Hudson)
	Congruences modulo 16 for the class numbers of the quadratic fields Q(√±p) and Q(√±2p) for p a prime congruent to 5 modulo 8, Acta Arith. 40 (1982), 375-397. (with P. Kaplan)
	Class numbers and biquadratic reciprocity, Canad. J. Math. 34 (1982), 969-988. (with J. D. Currie)
	Congruences modulo 8 for the class numbers of Q(√±p), p ≡ 3 (mod 4) a prime, J. Number Theory 15 (1982), 182-198.
	Cauchy-type congruences for binomial coefficients, Proc. Amer. Math. Soc. 85 (1982), 169-174. (with R. H. Hudson)
	On the class numbers of Q(√±2p) modulo 16, for p ≡ 1 (mod 8) a prime, Acta Arith. 40 (1982), 289-296. (with P. Kaplan)
	On the divisibility of the class numbers of Q(√-p) and Q(√-2p) by 16, Canad. Math. Bull. 25 (1982), 200-206. (with P. A. Leonard)
	Resolution of ambiguities in the evaluation of cubic and quartic Jacobsthal sums, Pacific J. Math. 99 (1982), 379-386. (with R. H. Hudson)
	An Artin character and representations of primes by binary quadratic forms. II, Manuscripta Math. 37 (1982), 357-381. (with F. Halter-Koch and P. Kaplan)
	A new criterion for 7 to be a fourth power (mod p), Israel J. Math. 38 (1981), 221-230. (with R. H. Hudson)
	A representation problem involving binary quadratic forms, Arch. Math. (Basel) 36 (1981), 53-56. (with P. A. Leonard)
	An Artin character and representation of primes by binary quadratic forms, Manuscripta Math. 33 (1981), 339-356. (with P. Kaplan)
	Note on the quadratic character of a quadratic unit, Pacific J. Math. 92 (1981), 35-38. (with D. A. Buell and P. A. Leonard)
	The class number of Q(√p) modulo 4, for p ≡ 5 (mod 8) a prime, Pacific J. Math. 92 (1981), 241-248.
	On the class number of Q(√-p) modulo 16, for p ≡ 1 (mod 8) a prime, Acta Arith. 39 (1981), 381-398.
	Some new residuacity criteria, Pacific J. Math. 91 (1980), 135-143. (with R. H. Hudson)
	The quartic character of certain quadratic units, J. Number Theory 12 (1980), 106-109. (with P. A. Leonard)
	On the evaluation of (ε_q1q2/p), Rocky Mountain J. Math. 10 (1980), 559-573.
	The quadratic and quartic character of certain quadratic units. II, Rocky Mountain J. Math. 9 (1979), 683-692. (with P. A. Leonard)
	An octic reciprocity law of Scholz type, Proc. Amer. Math. Soc. 77 (1979), 315-318. (with D. A. Buell)
	Evaluation of character sums connected with elliptic curves, Proc. Amer. Math. Soc. 73 (1979), 291-299.
	Remark on an assertion of Chowla, Norske Vid. Selsk. Skr. (Trondheim), No. 1 (1979), 3-4.
	Evaluation of certain Jacobsthal sums, Boll. Un. Mat. Ital. 15 (1978), 717-723. (with P. A. Leonard)
	Is there an octic reciprocity law of Scholz type?, Amer. Math. Monthly 85 (1978), 483-484. (with D. A. Buell)
	On Eisenstein's supplement to the law of cubic reciprocity, Bull. Calcutta Math. Soc. 69 (1977), 311-314.
	On the imaginary bicyclic biquadratic fields with class-number 2, Math. Comp. 31 (1977), 1034-1042. (with D. A. Buell and H. C. Williams)
	On Scholz's reciprocity law, Proc. Amer. Math. Soc. 64 (1977), 45-46.
	Note on Burde's rational biquadratic reciprocity theorem, Canad. Math. Bull. 20 (1977), 145-146.
	A rational sixteenth power reciprocity law, Acta Arith. 33 (1977), 365-377. (with P. A. Leonard)
	The quadratic and quartic character of certain quadratic units. I, Pacific J. Math. 71 (1977), 101-106. (with P. A. Leonard)
	On the supplement to the law of biquadratic reciprocity, Proc. Amer. Math. Soc. 59 (1976), 19-22.
	Explicit criteria for quintic residuacity, Math. Comp. 30 (1976), 847-853.
	A rational octic reciprocity law, Pacific J. Math. 63 (1976), 563-570.
	Explicit forms of Kummer's complementary theorems to his law of quintic reciprocity, J. Reine Angew. Math. 288 (1976), 207-210.
	Note on a result of Barrucand and Cohn, J. Reine Angew. Math. 285 (1976), 218-220.
	The eleventh power character of 2, J. Reine Angew. Math. 286/287 (1976), 213-222. (with P. A. Leonard and B. C. Mortimer)
	Cubic nonresidues (mod p), Delta (Waukesha) 6 (1976), 23-28.
	Note on a result of Kaplan, Proc. Amer. Math. Soc. 56 (1976), 34-36.
	The cyclotomic numbers of order eleven, Acta Arith. 26 (1975), 365-383. (with P. A. Leonard)
	On Euler's criterion for quintic nonresidues, Pacific J. Math. 61 (1975), 543-550.
	2 as a ninth power (mod p), J. Indian Math. Soc. 39 (1975), 167-172.
	Note on non-Euclidean principal ideal domains, Math. Mag. 48 (1975), 176-177.
	On Euler's criterion for cubic nonresidues, Proc. Amer. Math. Soc. 49 (1975), 277-283.
	The cyclotomic numbers of order seven, Proc. Amer. Math. Soc. 51 (1975), 295-300. (with P. A. Leonard)
	Note on a cubic character sum, Aequationes Math. 12 (1975), 229-231.
	Note on the supplement to the law of cubic reciprocity, Proc. Amer. Math. Soc. 47 (1975), 333-334.
	Jacobi sums and a theorem of Brewer, Rocky Mountain J. Math. 5 (1975), 301-308. (Erratum 6 (1976), 509.)
	The septic character of 2, 3, 5 and 7, Pacific J. Math. 52 (1974), 142-147. (with P. A. Leonard)
	3 as a ninth power (mod p), Math. Scand. 35 (1974), 309-317.
	A diophantine system of Dickson, Atti Accad. Naz. Lincei Rend. Cl. Sci. Fis. Mat. Natur. 56 (1974), 145-150. (with P. A. Leonard)
	Forms representable by integral binary quadratic forms, Acta Arith. 26 (1974), 1-9. (with P. A. Leonard)
	Note on a paper of S. Uchiyama, Canad. Math. Bull. 17 (1974), 289-293. (with B. C. Mortimer)
	Another proof of a theorem of Niven, Math. Mag. 46 (1973), 39.
	Representation of a binary quadratic form as a sum of two squares, Proc. Amer. Math. Soc. 32 (1972), 368-370.
	Forms representable by an integral positive-definite binary quadratic form, Math. Scand. 29 (1971), 73-86.
	Note on Dickson's permutation polynomials, Duke Math. J. 38 (1971), 659-665.
	Note on a theorem of Pall, Proc. Amer. Math. Soc. 28 (1971), 315-316.
	Integers of biquadratic fields, Canad. Math. Bull. 13 (1970), 519-526.
	Addendum to "On a theorem of Niven", Canad. Math. Bull. 11 (1968), 145.
	On a theorem of Niven, Canad. Math. Bull. 10 (1967), 573-578.