@article{SM_1970_10_3_a5,
     author = {V. A. Kondrat'ev and S. D. \`Eidel'man},
     title = {Properties of solutions of linear evolutionary systems with elliptic space part},
     journal = {Sbornik. Mathematics},
     pages = {369--397},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {1970},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1970_10_3_a5/}
}