@article{1250128325, author = {Farahat, H.K.}, title = {Additions compatible with multiplication}, journal = {Rocky Mountain J. Math.}, volume = {12}, number = {4}, year = {1982}, pages = { 299-304}, language = {en}, url = {http://dml.mathdoc.fr/item/1250128325} }
Farahat, H.K. Additions compatible with multiplication. Rocky Mountain J. Math., Tome 12 (1982) no. 4, pp. 299-304. http://gdmltest.u-ga.fr/item/1250128325/