@article{IIMI_2002_25_2_a4,
     author = {A. I. Blagodatskikh},
     title = {Example of {Pontryagin} with many evaders},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {23--26},
     publisher = {mathdoc},
     volume = {25},
     number = {2},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2002_25_2_a4/}
}