@article{SM_1976_30_4_a5,
     author = {R. V. Duduchava},
     title = {On bisingular integral operators with discontinuous coefficients},
     journal = {Sbornik. Mathematics},
     pages = {515--537},
     publisher = {mathdoc},
     volume = {30},
     number = {4},
     year = {1976},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1976_30_4_a5/}
}