@article{ZNSL_1983_125_a14,
     author = {M. A. Skopina},
     title = {Lebesgue constants of multiple polyhedron sums of de la {Vallee{\textendash}Poussin}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {154--165},
     year = {1983},
     volume = {125},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1983_125_a14/}
}