Classes of polynomials having only one non-cyclotomic irreducible factor A. Borisov; M. Filaseta; T. Y. Lam; O. Trifonov — 1999 Acta Arithmetica
Yet another generalization of the Ramanujan-Nagell equation M. A. Bennett; M. Filaseta; O. Trifonov — 2008 Acta Arithmetica