@article{INTG_1983_14_a4,
     author = {V. R. Kaigorodov},
     title = {Structure of the curvature of space-time},
     journal = {Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara},
     pages = {177--204},
     publisher = {mathdoc},
     volume = {14},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTG_1983_14_a4/}
}