@article{IVM_1987_8_a4,
     author = {V. V. Kolyan and A. P. Norden},
     title = {Autocomposition of a~hyperquadric and {Ne\u{i}felʹd} normalization of a~manifold of lines},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {27--29},
     year = {1987},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1987_8_a4/}
}