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@article{AL_1974_13_4_a2, author = {E. B. Kinber}, title = {Frequency enumeration of sets}, journal = {Algebra i logika}, pages = {398--419}, publisher = {mathdoc}, volume = {13}, number = {4}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1974_13_4_a2/} }
E. B. Kinber. Frequency enumeration of sets. Algebra i logika, Tome 13 (1974) no. 4, pp. 398-419. http://geodesic.mathdoc.fr/item/AL_1974_13_4_a2/