@article{SM_1973_20_1_a3,
     author = {A. S. Dikanskii},
     title = {Conjugate problems of elliptic differential and pseudodifferential boundary value problems in a~bounded domain},
     journal = {Sbornik. Mathematics},
     pages = {67--83},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {1973},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1973_20_1_a3/}
}