@article{1102977523, author = {Duncan, R. L.}, title = {Some continuity properties of the Schnirelmann density. II.}, journal = {Pacific J. Math.}, volume = {35}, number = {3}, year = {1970}, pages = { 65-67}, language = {en}, url = {http://dml.mathdoc.fr/item/1102977523} }
Duncan, R. L. Some continuity properties of the Schnirelmann density. II.. Pacific J. Math., Tome 35 (1970) no. 3, pp. 65-67. http://gdmltest.u-ga.fr/item/1102977523/