@article{ZNSL_1980_97_a18,
     author = {V. N. Solev},
     title = {Approximation of a~reproducing kernel},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {195--198},
     publisher = {mathdoc},
     volume = {97},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1980_97_a18/}
}