@article{1270216086, author = {TSUKADA, Kazumi}, title = {Eigenvalues of the Laplacian of Warped Product}, journal = {Tokyo J. of Math.}, volume = {03}, number = {1}, year = {1980}, pages = { 131-136}, language = {en}, url = {http://dml.mathdoc.fr/item/1270216086} }
TSUKADA, Kazumi. Eigenvalues of the Laplacian of Warped Product. Tokyo J. of Math., Tome 03 (1980) no. 1, pp. 131-136. http://gdmltest.u-ga.fr/item/1270216086/