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@article{FAA_1977_11_2_a13, author = {L. A. Sakhnovich}, title = {The representation of the kernel of an invertible operator}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {89--90}, publisher = {mathdoc}, volume = {11}, number = {2}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1977_11_2_a13/} }
L. A. Sakhnovich. The representation of the kernel of an invertible operator. Funkcionalʹnyj analiz i ego priloženiâ, Tome 11 (1977) no. 2, pp. 89-90. http://geodesic.mathdoc.fr/item/FAA_1977_11_2_a13/