@article{1178243730, author = {Tsuchida, Kisuke}, title = {Operation and co-operation in the general categories}, journal = {Tohoku Math. J. (2)}, volume = {16}, number = {4}, year = {1964}, pages = { 15-33}, language = {en}, url = {http://dml.mathdoc.fr/item/1178243730} }
Tsuchida, Kisuke. Operation and co-operation in the general categories. Tohoku Math. J. (2), Tome 16 (1964) no. 4, pp. 15-33. http://gdmltest.u-ga.fr/item/1178243730/