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@article{DAN_1990_315_2_a6, author = {V. V. Kuzmichev}, title = {Conditions for the removal of singularities in the $C^l$ metric}, journal = {Doklady Akademii Nauk}, pages = {284--287}, publisher = {mathdoc}, volume = {315}, number = {2}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_315_2_a6/} }
V. V. Kuzmichev. Conditions for the removal of singularities in the $C^l$ metric. Doklady Akademii Nauk, Tome 315 (1990) no. 2, pp. 284-287. http://geodesic.mathdoc.fr/item/DAN_1990_315_2_a6/