Andreas Jakoby Maciej Liskiewicz Rüdiger Reischuk Christian Schindelhauer Improving the average delay of sorting. 1030-1041 2009 410 Theor. Comput. Sci. 11 http://dx.doi.org/10.1016/j.tcs.2008.10.028 db/journals/tcs/tcs410.html#JakobyLRS09