@article{GDZPPN002354128,
title = {On the number of prime divisors of a binomial coefficient.},
journal = {Mathematica Scandinavica},
volume = {38},
year = {1976},
pages = {271-281},
zbl = {0344.10003},
url = {http://dml.mathdoc.fr/item/GDZPPN002354128}
}
Selmer, Ernst S. On the number of prime divisors of a binomial coefficient.. Mathematica Scandinavica, Tome 38 (1976) pp. 271-281. http://gdmltest.u-ga.fr/item/GDZPPN002354128/