@article{1103040242, author = {Avann, S. P.}, title = {A numerical condition for modularity of a lattice.}, journal = {Pacific J. Math.}, volume = {8}, number = {4}, year = {1958}, pages = { 17-22}, language = {en}, url = {http://dml.mathdoc.fr/item/1103040242} }
Avann, S. P. A numerical condition for modularity of a lattice.. Pacific J. Math., Tome 8 (1958) no. 4, pp. 17-22. http://gdmltest.u-ga.fr/item/1103040242/