@article{INTG_1971_3_a6,
     author = {S. I. Grigelionis},
     title = {A nonholonomic complex of the space~$P_4$},
     journal = {Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara},
     pages = {149--172},
     publisher = {mathdoc},
     volume = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTG_1971_3_a6/}
}