@article{DE_1974_10_8_a12,
     author = {\`E. I. Grudo},
     title = {The asymptotic solutions of certain systems of partial differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1451--1462},
     publisher = {mathdoc},
     volume = {10},
     number = {8},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_8_a12/}
}