with Michael B. Monagan Article and AMS Review	The First Case of Fermat's Last Theorem is true for all prime exponents up to 714,591,416,091,389 Transactions of the American Mathematical Society, vol 306, pages 329-359
with Barry J. Powell Article and AMS Review	On Sophie Germain type criteria for Fermat's Last Theorem Acta Arithmetica, vol 50,  pages 265-277
with Alexandros Moisiadis and Rolf Rees Article and AMS Review	Nested Steiner n-cycle systems and perpendicular arrays  Journal of Combinatorial Mathematics and Mathematical Computing, vol 3, pages 163-167
with Alexandros Moisiadis and Rolf Rees Article and AMS Review	Bipartite planes Congressus Numerantium, vol 61, pages 241-248