@article{TRSPY_1971_109_a0,
     author = {P. V. Galkin},
     title = {Estimate for {Lebesgue} constants},
     journal = {Informatics and Automation},
     pages = {3--5},
     publisher = {mathdoc},
     volume = {109},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1971_109_a0/}
}