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@article{FAA_1991_25_1_a16, author = {\`E. L. Pekarev}, title = {Angular operators of nondegenerate subspaces}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {86--88}, publisher = {mathdoc}, volume = {25}, number = {1}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1991_25_1_a16/} }
È. L. Pekarev. Angular operators of nondegenerate subspaces. Funkcionalʹnyj analiz i ego priloženiâ, Tome 25 (1991) no. 1, pp. 86-88. http://geodesic.mathdoc.fr/item/FAA_1991_25_1_a16/