@article{1138833470, author = {Nakayama, Tadasi}, title = {Note on $3$-factor sets}, journal = {Kodai Math. Sem. Rep.}, volume = {1}, number = {1}, year = {1949}, pages = { 11-14}, language = {en}, url = {http://dml.mathdoc.fr/item/1138833470} }
Nakayama, Tadasi. Note on $3$-factor sets. Kodai Math. Sem. Rep., Tome 1 (1949) no. 1, pp. 11-14. http://gdmltest.u-ga.fr/item/1138833470/