@article{1261153820, author = {KAWADA, Yukiyosi}, title = {Class formations IV.}, journal = {J. Math. Soc. Japan}, volume = {9}, number = {4}, year = {1957}, pages = { 395-405}, language = {en}, url = {http://dml.mathdoc.fr/item/1261153820} }
KAWADA, Yukiyosi. Class formations IV.. J. Math. Soc. Japan, Tome 9 (1957) no. 4, pp. 395-405. http://gdmltest.u-ga.fr/item/1261153820/