@article{1256053968,
author = {Griffith, Phillip},
title = {Separability of torsion free groups and a problem of J. H. C. Whitehead},
journal = {Illinois J. Math.},
volume = {12},
number = {4},
year = {1968},
pages = { 654-659},
language = {en},
url = {http://dml.mathdoc.fr/item/1256053968}
}
Griffith, Phillip. Separability of torsion free groups and a problem of J. H. C. Whitehead. Illinois J. Math., Tome 12 (1968) no. 4, pp. 654-659. http://gdmltest.u-ga.fr/item/1256053968/