@misc{VMUMM_2003_6_a13,
     title = {60th anniversary of {Nail'} {Rakhimovich} {Sibgatullin} (on the occasion of his sixtieth birthday)},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {59--60},
     year = {2003},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2003_6_a13/}
}