@article{RM_1979_34_2_a23,
     author = {N. N. Krasovskii and S. L. Sobolev and A. N. Tikhonov},
     title = {Valentin {Konstantinovich} {Ivanov} (on his seventieth birthday)},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {261--267},
     publisher = {mathdoc},
     volume = {34},
     number = {2},
     year = {1979},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1979_34_2_a23/}
}