@article{RM_1965_20_5_a0,
     author = {M. S. Agranovich},
     title = {Elliptic singular integro-differential operators},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1--121},
     publisher = {mathdoc},
     volume = {20},
     number = {5},
     year = {1965},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1965_20_5_a0/}
}