@article{IVM_1966_3_a9,
     author = {I. S. Kukles and R. Yu. Akchurina},
     title = {Discrimination problems for the characteristics in a~three-dimensional space.},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {73--83},
     publisher = {mathdoc},
     number = {3},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1966_3_a9/}
}