@article{1103035749, author = {Kvarda, Betty}, title = {On densities of sets of lattice points.}, journal = {Pacific J. Math.}, volume = {13}, number = {4}, year = {1963}, pages = { 611-615}, language = {en}, url = {http://dml.mathdoc.fr/item/1103035749} }
Kvarda, Betty. On densities of sets of lattice points.. Pacific J. Math., Tome 13 (1963) no. 4, pp. 611-615. http://gdmltest.u-ga.fr/item/1103035749/