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@article{MZM_2009_85_1_a12, author = {A. A. Ershov}, title = {Asymptotic {Expansion} of the {Solution} of a {Second-Order} {Equation}}, journal = {Matemati\v{c}eskie zametki}, pages = {134--138}, publisher = {mathdoc}, volume = {85}, number = {1}, year = {2009}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2009_85_1_a12/} }
A. A. Ershov. Asymptotic Expansion of the Solution of a Second-Order Equation. Matematičeskie zametki, Tome 85 (2009) no. 1, pp. 134-138. http://geodesic.mathdoc.fr/item/MZM_2009_85_1_a12/