@article{DAN_1970_193_5_a6,
     author = {J. Laiterer},
     title = {Criteria for normal solvability of systems of singular integral equations and {Wiener--Hopf} equations},
     journal = {Doklady Akademii Nauk},
     pages = {988--991},
     publisher = {mathdoc},
     volume = {193},
     number = {5},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_193_5_a6/}
}