@article{DAN_1965_163_2_a21,
     author = {M. M. Khapaev},
     title = {Non linear theory of the motion of fast charged particles in helical toroidal magnetic fields},
     journal = {Doklady Akademii Nauk},
     pages = {343--346},
     publisher = {mathdoc},
     volume = {163},
     number = {2},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_163_2_a21/}
}