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@article{DM_1991_3_3_a11, author = {V. V. Kudryavtsev}, title = {On the functional system $P_{k,\Pi}$}, journal = {Diskretnaya Matematika}, pages = {124--134}, publisher = {mathdoc}, volume = {3}, number = {3}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DM_1991_3_3_a11/} }
V. V. Kudryavtsev. On the functional system $P_{k,\Pi}$. Diskretnaya Matematika, Tome 3 (1991) no. 3, pp. 124-134. http://geodesic.mathdoc.fr/item/DM_1991_3_3_a11/