@article{IVM_1974_12_a14,
     author = {B. P. Chebysheva},
     title = {The geometry of cylindrical families of planes in a~space with a~degenerate metric},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {77--81},
     publisher = {mathdoc},
     number = {12},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1974_12_a14/}
}