George Lagogiannis Christos Makris Athanasios K. Tsakalidis Reducing structural changes in van Emde Boas' data structure to the lower bound for the dynamic predecessor problem. 106-141 2006 4 J. Discrete Algorithms 1 http://dx.doi.org/10.1016/j.jda.2005.01.006 db/journals/jda/jda4.html#LagogiannisMT06