@article{TRSPY_1998_221_a4,
     author = {I. A. Bogaevsky},
     title = {Singularities of {Convex} {Hulls} of {Three-Dimensional} {Hypersurfaces}},
     journal = {Informatics and Automation},
     pages = {81--100},
     publisher = {mathdoc},
     volume = {221},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1998_221_a4/}
}