John W. Byers, Brent Heeringa, Michael Mitzenmacher, Georgios Zervas. Heapable Sequences and Subsequences. In Philippe Flajolet, Daniel Panario, editors, Proceedings of the Eighth Workshop on Analytic Algorithmics and Combinatorics, ANALCO 2011, San Francisco, California, USA, January 22, 2011. pages 33-44, SIAM, 2011. [doi]
Abstract is missing.