@article{IZKAB_2000_1_a2,
     author = {V. A. Eleev and S. K. Kumykova and V. N. Lesev},
     title = {On problems of the type of the {Bitsadze-Samarsky} problem for mixed equations with perpendicular lines of degeneracy},
     journal = {News of the Kabardin-Balkar scientific center of RAS},
     pages = {35--40},
     publisher = {mathdoc},
     number = {1},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IZKAB_2000_1_a2/}
}