@article{TM_1999_224_a0,
     author = {E. F. Mishchenko},
     title = {A~Few {Words} about {L.} {S.~Pontryagin} and {His} {Scientific} {Activity}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {7--13},
     year = {1999},
     volume = {224},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1999_224_a0/}
}