@article{DE_1994_30_9_a7,
     author = {I. I. Lifanov and I. K. Lifanov},
     title = {Theory of singular solutions of singular integral equations and its application in diffraction problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1553--1560},
     year = {1994},
     volume = {30},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_9_a7/}
}