@article{DE_1982_18_10_a25, author = {G. A. Omel'yanov}, title = {Boundary value problems for elliptic systems of nonlinear differential equations with a small parameter}, journal = {Differencialʹnye uravneni\^a}, pages = {1829--1831}, publisher = {mathdoc}, volume = {18}, number = {10}, year = {1982}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1982_18_10_a25/} }