@article{1102971636,
author = {Krom, Melven and Krom, Myren},
title = {Groups with free nonabelian subgroups.},
journal = {Pacific J. Math.},
volume = {35},
number = {3},
year = {1970},
pages = { 425-427},
language = {en},
url = {http://dml.mathdoc.fr/item/1102971636}
}
Krom, Melven; Krom, Myren. Groups with free nonabelian subgroups.. Pacific J. Math., Tome 35 (1970) no. 3, pp. 425-427. http://gdmltest.u-ga.fr/item/1102971636/