1. Engineering a sort function
2. Expected time bounds for selection
3. RonaldGraham, DonaldKnuth, OrenPatashnik, Matematyka konkretna, Wydawnictwo Naukowe PWN, Warsaw, 1998, 719–0, Translated from the second English (1994) edition by P. Chrząstowski, A. Czumaj, L. Gąsieniec and M. Raczunas99m:68002
4. On the median-of-k version of Hoare's selection algorithm
5. Algorithm 64: Quicksort