@article{DAN_1994_335_2_a3,
     author = {V. I. Zubov},
     title = {The twisting problem for beams of charged particles},
     journal = {Doklady Akademii Nauk},
     pages = {142--145},
     publisher = {mathdoc},
     volume = {335},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_335_2_a3/}
}