@article{TM_1975_138_a6,
     author = {N. I. Chernykh},
     title = {Approximation by splines with a~given density of distribution of the nodes},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {174--197},
     publisher = {mathdoc},
     volume = {138},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1975_138_a6/}
}