@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/