@article{1077492794, author = {Pate, Robert S.}, title = {Rings with multiple-valued operations}, journal = {Duke Math. J.}, volume = {8}, number = {1}, year = {1941}, pages = { 506-517}, language = {en}, url = {http://dml.mathdoc.fr/item/1077492794} }
Pate, Robert S. Rings with multiple-valued operations. Duke Math. J., Tome 8 (1941) no. 1, pp. 506-517. http://gdmltest.u-ga.fr/item/1077492794/