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@article{DAN_1979_249_2_a1, author = {M. M. Vishik}, title = {On a non-archimedean analogue of perturbation theory}, journal = {Doklady Akademii Nauk}, pages = {267--271}, publisher = {mathdoc}, volume = {249}, number = {2}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1979_249_2_a1/} }
M. M. Vishik. On a non-archimedean analogue of perturbation theory. Doklady Akademii Nauk, Tome 249 (1979) no. 2, pp. 267-271. http://geodesic.mathdoc.fr/item/DAN_1979_249_2_a1/