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@article{DAN_1979_247_4_a11, author = {A. A. Lokshin}, title = {Fundamental solutions of wave operators with retarded time. {New} asymptotic formulas}, journal = {Doklady Akademii Nauk}, pages = {812--814}, publisher = {mathdoc}, volume = {247}, number = {4}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1979_247_4_a11/} }
A. A. Lokshin. Fundamental solutions of wave operators with retarded time. New asymptotic formulas. Doklady Akademii Nauk, Tome 247 (1979) no. 4, pp. 812-814. http://geodesic.mathdoc.fr/item/DAN_1979_247_4_a11/