@article{VMUMM_1985_1_a11,
     author = {O. N. Kolesnikov},
     title = {Exponential sections},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {52--56},
     year = {1985},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1985_1_a11/}
}