@article{1029003079, author = {Donnelly, Harold}, title = {Eigenvalue estimates for certain noncompact manifolds.}, journal = {Michigan Math. J.}, volume = {31}, number = {1}, year = {1984}, pages = { 349-357}, language = {en}, url = {http://dml.mathdoc.fr/item/1029003079} }
Donnelly, Harold. Eigenvalue estimates for certain noncompact manifolds.. Michigan Math. J., Tome 31 (1984) no. 1, pp. 349-357. http://gdmltest.u-ga.fr/item/1029003079/