@article{1077309878, author = {Salinas, Norberto}, title = {Reducing essential eigenvalues}, journal = {Duke Math. J.}, volume = {40}, number = {1}, year = {1973}, pages = { 561-580}, language = {en}, url = {http://dml.mathdoc.fr/item/1077309878} }
Salinas, Norberto. Reducing essential eigenvalues. Duke Math. J., Tome 40 (1973) no. 1, pp. 561-580. http://gdmltest.u-ga.fr/item/1077309878/