@article{1261735238, author = {TOMONAGA, Yasuro}, title = {On Betti Numbers of Riemannian Spaces.}, journal = {J. Math. Soc. Japan}, volume = {2}, number = {1-2}, year = {1950}, pages = { 93-104}, language = {en}, url = {http://dml.mathdoc.fr/item/1261735238} }
TOMONAGA, Yasuro. On Betti Numbers of Riemannian Spaces.. J. Math. Soc. Japan, Tome 2 (1950) no. 1-2, pp. 93-104. http://gdmltest.u-ga.fr/item/1261735238/