@article{TM_1984_166_a15,
     author = {A. V. Pogorelov},
     title = {Special infinitesimal bendings of convex surfaces},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {210--212},
     year = {1984},
     volume = {166},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1984_166_a15/}
}