@article{GDZPPN00241838X, title = {V-Free Products of Hopfian Lattices.}, journal = {Mathematische Zeitschrift}, volume = {147}, year = {1976}, pages = {259-262}, zbl = {0325.06001}, url = {http://dml.mathdoc.fr/item/GDZPPN00241838X} }
Adams, M.E.; Sichler, J. V-Free Products of Hopfian Lattices.. Mathematische Zeitschrift, Tome 147 (1976) pp. 259-262. http://gdmltest.u-ga.fr/item/GDZPPN00241838X/