@article{INTM_1980_18_a4,
     author = {B. G. Gabdulkhaev},
     title = {Finite-dimensional approximations of singular integrals and direct methods for solving singular integral and integro-differential equations},
     journal = {Itogi nauki i tehniki. Seri\^a, Matemati\v{c}eskij analiz},
     pages = {251--307},
     publisher = {mathdoc},
     volume = {18},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTM_1980_18_a4/}
}