Robert M. Corless, Hui Ding, David J. Jeffrey. The solution of ::::s:::: exp(::::s::::) = ::::a:::: is not always the lambert ::::w:::: function of ::::a::::. In Dongming Wang, editor, Symbolic and Algebraic Computation, International Symposium, ISSAC 2007, Waterloo, Ontario, Canada, July 28 - August 1, 2007, Proceedings. pages 116-121, ACM, 2007. [doi]
Abstract is missing.