Noam D. Elkies, Nicholas F. Rogers. Elliptic Curves x:::3::: + y:::3::: = k of High Rank. In Duncan A. Buell, editor, Algorithmic Number Theory, 6th International Symposium, ANTS-VI, Burlington, VT, USA, June 13-18, 2004, Proceedings. Volume 3076 of Lecture Notes in Computer Science, pages 184-193, Springer, 2004. [doi]
Abstract is missing.