@article{GDZPPN002422573,
title = {Groups with One More Generator than Relators.},
journal = {Mathematische Zeitschrift},
volume = {166},
year = {1979},
pages = {279-282},
zbl = {0388.20025},
url = {http://dml.mathdoc.fr/item/GDZPPN002422573}
}
Pride, Stephen J.; Baumslag, Benjamin. Groups with One More Generator than Relators.. Mathematische Zeitschrift, Tome 166 (1979) pp. 279-282. http://gdmltest.u-ga.fr/item/GDZPPN002422573/