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@article{DAN_1964_157_5_a25, author = {A. V. Nikolaev}, title = {Diagrams and series of separation in extraction}, journal = {Doklady Akademii Nauk}, pages = {1156--1159}, publisher = {mathdoc}, volume = {157}, number = {5}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_157_5_a25/} }
A. V. Nikolaev. Diagrams and series of separation in extraction. Doklady Akademii Nauk, Tome 157 (1964) no. 5, pp. 1156-1159. http://geodesic.mathdoc.fr/item/DAN_1964_157_5_a25/