@article{GDZPPN000365475, title = {On the Average Number of k-Sets.}, journal = {Discrete \& computational geometry}, volume = {7}, year = {1992}, pages = {209-214}, url = {http://dml.mathdoc.fr/item/GDZPPN000365475} }
Pellegrini, M.; Shor, P.W. On the Average Number of k-Sets.. Discrete & computational geometry, Tome 7 (1992) pp. 209-214. http://gdmltest.u-ga.fr/item/GDZPPN000365475/