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@article{DAN_1988_301_3_a8, author = {A. P. Makhmudov and Z. S. Aliyev}, title = {Nondifferentiable perturbations of spectral problems for a pair of}, journal = {Doklady Akademii Nauk}, pages = {551--554}, publisher = {mathdoc}, volume = {301}, number = {3}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1988_301_3_a8/} }
A. P. Makhmudov; Z. S. Aliyev. Nondifferentiable perturbations of spectral problems for a pair of. Doklady Akademii Nauk, Tome 301 (1988) no. 3, pp. 551-554. http://geodesic.mathdoc.fr/item/DAN_1988_301_3_a8/