@article{TRSPY_1999_224_a1,
     author = {R. V. Gamkrelidze},
     title = {Mathematical {Work} of {L.\,S.~Pontryagin}},
     journal = {Informatics and Automation},
     pages = {14--27},
     publisher = {mathdoc},
     volume = {224},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1999_224_a1/}
}