@article{SM_2000_191_11_a1,
     author = {V. V. Kornienko},
     title = {On a non-local problem for irregular equations},
     journal = {Sbornik. Mathematics},
     pages = {1607--1633},
     publisher = {mathdoc},
     volume = {191},
     number = {11},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2000_191_11_a1/}
}