@article{1103051787, author = {Weinberger, H. F.}, title = {An optimum problem in the Weinstein method for eigenvalues.}, journal = {Pacific J. Math.}, volume = {2}, number = {4}, year = {1952}, pages = { 413-418}, language = {en}, url = {http://dml.mathdoc.fr/item/1103051787} }
Weinberger, H. F. An optimum problem in the Weinstein method for eigenvalues.. Pacific J. Math., Tome 2 (1952) no. 4, pp. 413-418. http://gdmltest.u-ga.fr/item/1103051787/