@article{RM_1970_25_3_a20,
     author = {Yu. V. Egorov},
     title = {Sufficient conditions for the local solvability of pseudodifferential equations},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {25},
     number = {3},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1970_25_3_a20/}
}