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@article{MZM_1988_43_5_a8, author = {A. Artykbaev}, title = {Total angle about the vertex of a cone in {Galilean} space}, journal = {Matemati\v{c}eskie zametki}, pages = {657--662}, publisher = {mathdoc}, volume = {43}, number = {5}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1988_43_5_a8/} }
A. Artykbaev. Total angle about the vertex of a cone in Galilean space. Matematičeskie zametki, Tome 43 (1988) no. 5, pp. 657-662. http://geodesic.mathdoc.fr/item/MZM_1988_43_5_a8/