@article{VMUMM_1998_3_a0,
     author = {M. I. Dyachenko and B. S. Kashin and M. K. Potapov},
     title = {Petr {Lavrent'evich} {Ul'yanov} (on the occasion of his seventieth birthday)},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {3--6},
     publisher = {mathdoc},
     number = {3},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1998_3_a0/}
}