@article{RM_1960_15_2_a2,
     author = {V. A. Il'in},
     title = {The solvability of mixed problems for hyperbolic and parabolic equations},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {85--142},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1960},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1960_15_2_a2/}
}