@article{RM_1971_26_1_a11,
     author = {V. V. Grushin},
     title = {Singularities of solutions of a~certain class of pseudodifferential and degenerating elliptic equations},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {26},
     number = {1},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1971_26_1_a11/}
}