@article{IVM_1978_9_a12,
     author = {Fan Van Khap},
     title = {Application of generalized quadrature formulas to the approximate solution of operator equations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {89--96},
     publisher = {mathdoc},
     number = {9},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1978_9_a12/}
}