@article{VMUMM_1998_6_a14,
     author = {Ninche F. Silven},
     title = {The generalized {Sierpi\'nski} problem},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {56--57},
     year = {1998},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1998_6_a14/}
}