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@article{AL_1970_9_1_a5, author = {S. V. Smirnov}, title = {\v{C}eby\v{s}ev approximations and the theory of models}, journal = {Algebra i logika}, pages = {73--79}, publisher = {mathdoc}, volume = {9}, number = {1}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1970_9_1_a5/} }
S. V. Smirnov. \v{C}eby\v{s}ev approximations and the theory of models. Algebra i logika, Tome 9 (1970) no. 1, pp. 73-79. http://geodesic.mathdoc.fr/item/AL_1970_9_1_a5/