@article{DE_1981_17_4_a24,
     author = {V. S. Vladimirov and A. K. Gushchin and A. A. Dezin and V. M. Millionshchikov and L. S. Pontryagin},
     title = {Valentin {Petrovich} {Mikha{\v\i}lov} (on the occasion of his fiftieth birthday)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {757--762},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_4_a24/}
}