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@article{DAN_1989_305_5_a7, author = {V. I. Sumin}, title = {Volterra functional-operator equations in the theory of the}, journal = {Doklady Akademii Nauk}, pages = {1056--1059}, publisher = {mathdoc}, volume = {305}, number = {5}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1989_305_5_a7/} }
V. I. Sumin. Volterra functional-operator equations in the theory of the. Doklady Akademii Nauk, Tome 305 (1989) no. 5, pp. 1056-1059. http://geodesic.mathdoc.fr/item/DAN_1989_305_5_a7/