@article{VMUMM_1990_6_a25,
     author = {S. M. Nikol'skii and P. L. Ul'yanov},
     title = {Mikhail {Konstantinovich} {Potapov} (on the occasion of his 60th birthday)},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {89--90},
     publisher = {mathdoc},
     number = {6},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1990_6_a25/}
}