1. S. Akhtari, A. Togbé, and P. G. Walsh, On the equation aX4-bY2 = 2, Acta Arith. 131 (2008), no. 2, 145–169.[MR]
  2. John N. Bray, Ibrahim A. I. Suleiman, Peter G. Walsh, and Robert A. Wilson, Generating maximal subgroups of sporadic simple groups, Comm. Algebra 29 (2001), no. 3, 1325–1337.[MR]
  3. E. Herrmann, F. Luca, and P. G. Walsh, A note on the Ramanujan-Nagell equation, Publ. Math. Debrecen 64 (2004), no. 1-2, 21–30.[MR]
  4. Florian Luca and Peter Gareth Walsh, On a sequence of integers arising from simultaneous Pell equations, Funct. Approx. Comment. Math. 38 (2008), no. , part 2, 221–226.[MR/link]
  5. P. G. Walsh, On a very particular class of Ramanujan-Nagell type equations, Far East J. Math. Sci. (FJMS) 24 (2007), no. 1, 55–58.[MR]