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@article{DAN_1990_313_5_a1, author = {K. Kh. Boimatov and A. G. Kostyuchenko}, title = {Spectral asymptotics of polynomial pencils of differential}, journal = {Doklady Akademii Nauk}, pages = {1036--1040}, publisher = {mathdoc}, volume = {313}, number = {5}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_313_5_a1/} }
K. Kh. Boimatov; A. G. Kostyuchenko. Spectral asymptotics of polynomial pencils of differential. Doklady Akademii Nauk, Tome 313 (1990) no. 5, pp. 1036-1040. http://geodesic.mathdoc.fr/item/DAN_1990_313_5_a1/