@article{DE_2003_39_3_a14,
     author = {A. I. Basik and A. T. Uss},
     title = {On {Boundary} {Value} {Problems} for {First-Order} {Elliptic} {Pseudosymmetric} {Systems} in $\mathbb R^4$},
     journal = {Differencialʹnye uravneni\^a},
     pages = {410--412},
     publisher = {mathdoc},
     volume = {39},
     number = {3},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2003_39_3_a14/}
}