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@article{MZM_1971_10_3_a14, author = {B. I. Selivanov}, title = {Generalization of the problem of the number of partitions of a finite set}, journal = {Matemati\v{c}eskie zametki}, pages = {361--367}, publisher = {mathdoc}, volume = {10}, number = {3}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1971_10_3_a14/} }
B. I. Selivanov. Generalization of the problem of the number of partitions of a finite set. Matematičeskie zametki, Tome 10 (1971) no. 3, pp. 361-367. http://geodesic.mathdoc.fr/item/MZM_1971_10_3_a14/