@article{DAN_1995_341_4_a11,
     author = {V. V. Smolyaninov},
     title = {Chronogeometric systems of basis invariants},
     journal = {Doklady Akademii Nauk},
     pages = {478--480},
     publisher = {mathdoc},
     volume = {341},
     number = {4},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_341_4_a11/}
}