@article{TMF_2014_180_2_a7,
     author = {V. V. Napalkov and A. A. Nuyatov},
     title = {Multipoint {Vall\'ee} {Poussin} problem for convolution operators with nodes defined inside an~angle},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {264--271},
     year = {2014},
     volume = {180},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2014_180_2_a7/}
}