@misc{VMUMM_1988_6_a23,
     title = {In memory of {Yakov} {Naumovich} {Roitenberg}},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {84--86},
     publisher = {mathdoc},
     number = {6},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1988_6_a23/}
}