@article{1200787784, author = {Ranjan, Akhil and Santhanam, G.}, title = {The first eigenvalue of $P$-manifolds}, journal = {Osaka J. Math.}, volume = {34}, number = {1}, year = {1997}, pages = { 821-842}, language = {en}, url = {http://dml.mathdoc.fr/item/1200787784} }
Ranjan, Akhil; Santhanam, G. The first eigenvalue of $P$-manifolds. Osaka J. Math., Tome 34 (1997) no. 1, pp. 821-842. http://gdmltest.u-ga.fr/item/1200787784/