@article{SM_2006_197_11_a5,
     author = {A. P. Khromov},
     title = {Integral operators with kernels that are discontinuous on},
     journal = {Sbornik. Mathematics},
     pages = {1669--1696},
     year = {2006},
     volume = {197},
     number = {11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2006_197_11_a5/}
}