@article{1103051942, author = {Pu, P. M.}, title = {Some inequalities in certain nonorientable Riemannian manifolds.}, journal = {Pacific J. Math.}, volume = {2}, number = {4}, year = {1952}, pages = { 55-71}, language = {en}, url = {http://dml.mathdoc.fr/item/1103051942} }
Pu, P. M. Some inequalities in certain nonorientable Riemannian manifolds.. Pacific J. Math., Tome 2 (1952) no. 4, pp. 55-71. http://gdmltest.u-ga.fr/item/1103051942/