On the eulericity of a graph. - Keith R. Matthews (J. Graph Theory, 1978)

Extended GCD and Hermite Normal Form Algorithms via Lattice Basis Reduction. - George Havas; Bohdan S. Majewski; Keith R. Matthews (Exp. Math., 1998)

Extended GCD and Hermite Normal Form Algorithms via Lattice Basis Reduction (addenda and errata). - George Havas; Bohdan S. Majewski; Keith R. Matthews (Exp. Math., 1999)

Thue's theorem and the diophantine equation x2 - Dy2 = +-N. - Keith R. Matthews (Math. Comput., 2002)

A Continued Fractions Approach to a Result of Feit. - John P. Robertson; Keith R. Matthews (Am. Math. Mon., 2008)

Corrigenda to "Calculation of the regulator of Q(√D) by use of the nearest integer continued fraction algorithm". - Keith R. Matthews; John P. Robertson; Jim White (Math. Comput., 2009)

Midpoint criteria for solving Pell's equation using the nearest square continued fraction. - Keith R. Matthews; John P. Robertson; Jim White (Math. Comput., 2010)

Lagrange's Algorithm Revisited: Solving at2 + btu + cu2 = n in the Case of Negative Discriminant. - Keith R. Matthews (J. Integer Seq., 2014)

Extending Theorems of Serret and Pavone. - Keith R. Matthews; John P. Robertson; Anitha Srinivasan (J. Integer Seq., 2017)