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@article{DAN_1980_250_3_a6, author = {G. A. Isaev}, title = {On root elements of multiparameter spectral problems}, journal = {Doklady Akademii Nauk}, pages = {544--547}, publisher = {mathdoc}, volume = {250}, number = {3}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1980_250_3_a6/} }
G. A. Isaev. On root elements of multiparameter spectral problems. Doklady Akademii Nauk, Tome 250 (1980) no. 3, pp. 544-547. http://geodesic.mathdoc.fr/item/DAN_1980_250_3_a6/