@article{DAN_1970_192_6_a6,
     author = {M. L. Rasulov},
     title = {The fundamental matrix of a second order elliptic system with a complex parameter},
     journal = {Doklady Akademii Nauk},
     pages = {1221--1223},
     year = {1970},
     volume = {192},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_192_6_a6/}
}