@article{SM_1971_15_2_a5,
     author = {A. I. Komech},
     title = {Elliptic boundary value problems for pseudodifferential operators on manifolds with conical points},
     journal = {Sbornik. Mathematics},
     pages = {261--297},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1971_15_2_a5/}
}