@article{1200685623, author = {Takahasi, Mutuo}, title = {On partitions of free products of groups}, journal = {Osaka Math. J.}, volume = {1}, number = {1}, year = {1949}, pages = { 49-51}, language = {en}, url = {http://dml.mathdoc.fr/item/1200685623} }
Takahasi, Mutuo. On partitions of free products of groups. Osaka Math. J., Tome 1 (1949) no. 1, pp. 49-51. http://gdmltest.u-ga.fr/item/1200685623/