Gianni Franceschini, J. Ian Munro. Implicit dictionaries with ::::O::::(1) modifications per update and fast search. In Proceedings of the Seventeenth Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2006, Miami, Florida, USA, January 22-26, 2006. pages 404-413, ACM Press, 2006. [doi]