@article{1250130218,
author = {Sacerdote, George S.},
title = {Some logical problems concerning free and free product groups},
journal = {Rocky Mountain J. Math.},
volume = {6},
number = {4},
year = {1976},
pages = { 401-408},
language = {en},
url = {http://dml.mathdoc.fr/item/1250130218}
}
Sacerdote, George S. Some logical problems concerning free and free product groups. Rocky Mountain J. Math., Tome 6 (1976) no. 4, pp. 401-408. http://gdmltest.u-ga.fr/item/1250130218/