@article{INTA_1967_a7,
     author = {R. N. Shcherbakov},
     title = {Differential line geometry of three-dimensional space},
     journal = {Itogi Nauki i Tekhniki. Seriya Algebra. Geometriya. Topologiya },
     pages = {265--321},
     publisher = {mathdoc},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTA_1967_a7/}
}