@misc{VMUMM_1993_5_a19,
     title = {IV {International} {Seminar} on {Discrete} {Mathematics} and {Applications}},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {78--82},
     year = {1993},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1993_5_a19/}
}