@article{RM_1984_39_1_a29,
     author = {S. M. Nikol'skii and Al. A. Privalov and P. L. Ul'yanov},
     title = {Pavel {Petrovich} {Korovkin} (on his seventieth birthday)},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {209--211},
     publisher = {mathdoc},
     volume = {39},
     number = {1},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1984_39_1_a29/}
}