Improving multikey Quicksort for sorting strings with many equal elements.

Eunsang Kim Kunsoo Park Improving multikey Quicksort for sorting strings with many equal elements. 454-459 2009 109 Inf. Process. Lett. 9 http://dx.doi.org/10.1016/j.ipl.2009.01.007 db/journals/ipl/ipl109.html#KimP09