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@article{DAN_1990_312_1_a13, author = {V. N. Strakhov}, title = {Variational methods in the theory of linear transformations of}, journal = {Doklady Akademii Nauk}, pages = {63--67}, publisher = {mathdoc}, volume = {312}, number = {1}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_312_1_a13/} }
V. N. Strakhov. Variational methods in the theory of linear transformations of. Doklady Akademii Nauk, Tome 312 (1990) no. 1, pp. 63-67. http://geodesic.mathdoc.fr/item/DAN_1990_312_1_a13/