@article{RM_1988_43_4_a32,
     author = {L. V. Zhizhiashvili and D. E. Men'shov and S. M. Nikol'skii},
     title = {Petr {Lavrent'evich} {Ul'yanov} (on his sixtieth birthday)},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {253--264},
     publisher = {mathdoc},
     volume = {43},
     number = {4},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1988_43_4_a32/}
}