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@article{FAA_1983_17_1_a12, author = {M. A. Krasnosel'skii and A. V. Sobolev}, title = {Spectral clearance of a focusing operator}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {73--74}, publisher = {mathdoc}, volume = {17}, number = {1}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1983_17_1_a12/} }
M. A. Krasnosel'skii; A. V. Sobolev. Spectral clearance of a focusing operator. Funkcionalʹnyj analiz i ego priloženiâ, Tome 17 (1983) no. 1, pp. 73-74. http://geodesic.mathdoc.fr/item/FAA_1983_17_1_a12/