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@article{DAN_1970_192_4_a18, author = {V. A. Kazinskii}, title = {On time variations of second derivatives of gravitational potential}, journal = {Doklady Akademii Nauk}, pages = {790--792}, publisher = {mathdoc}, volume = {192}, number = {4}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_192_4_a18/} }
V. A. Kazinskii. On time variations of second derivatives of gravitational potential. Doklady Akademii Nauk, Tome 192 (1970) no. 4, pp. 790-792. http://geodesic.mathdoc.fr/item/DAN_1970_192_4_a18/