@article{1102946094, author = {Trigg, Charles W.}, title = {Versum sequences in the binary system.}, journal = {Pacific J. Math.}, volume = {49}, number = {2}, year = {1973}, pages = { 263-275}, language = {en}, url = {http://dml.mathdoc.fr/item/1102946094} }
Trigg, Charles W. Versum sequences in the binary system.. Pacific J. Math., Tome 49 (1973) no. 2, pp. 263-275. http://gdmltest.u-ga.fr/item/1102946094/