@article{05117815,
title = {The number of finite groups whose element orders is given.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {47},
year = {2006},
pages = {463-478},
zbl = {1126.20010},
language = {en},
url = {http://dml.mathdoc.fr/item/05117815}
}
Moghaddamfar, A.R.; Shi, W.J. The number of finite groups whose element orders is given.. Beiträge zur Algebra und Geometrie, Tome 47 (2006) pp. 463-478. http://gdmltest.u-ga.fr/item/05117815/