@article{IVM_1988_11_a5,
     author = {A. P. Norden and N. Kh. Kharisova},
     title = {Moment space in the geometry of pairs of ruled surfaces of a~four-dimensional {Euclidean} space},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {33--35},
     publisher = {mathdoc},
     number = {11},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1988_11_a5/}
}