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@article{AL_1967_6_4_a12, author = {K. A. Zhevlakov}, title = {Letter to the editor}, journal = {Algebra i logika}, pages = {113--117}, publisher = {mathdoc}, volume = {6}, number = {4}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1967_6_4_a12/} }
K. A. Zhevlakov. Letter to the editor. Algebra i logika, Tome 6 (1967) no. 4, pp. 113-117. http://geodesic.mathdoc.fr/item/AL_1967_6_4_a12/