@article{TIMB_2012_20_1_a8,
     author = {O. Yu. Radko},
     title = {Classification of symbols of three-dimensional vector distributions of infinite type},
     journal = {Trudy Instituta matematiki},
     pages = {83--95},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2012_20_1_a8/}
}