@article{DAN_1969_189_3_a4,
     author = {S. D. \`Eidel'man and V. A. Kondratiev},
     title = {The nature of the solutions of linear evolutionary systems with elliptic spatial part},
     journal = {Doklady Akademii Nauk},
     pages = {468--471},
     publisher = {mathdoc},
     volume = {189},
     number = {3},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_189_3_a4/}
}