Graham Everest, Peter Rogers, Thomas Ward. A Higher-Rank Mersenne Problem. In Claus Fieker, David R. Kohel, editors, Algorithmic Number Theory, 5th International Symposium, ANTS-V, Sydney, Australia, July 7-12, 2002, Proceedings. Volume 2369 of Lecture Notes in Computer Science, pages 95-107, Springer, 2002. [doi]
Abstract is missing.