@article{IIMI_2006_37_3_a1,
     author = {I. N. Baranova},
     title = {Example of {Pontryagin} with many participants},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {5--6},
     publisher = {mathdoc},
     volume = {37},
     number = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2006_37_3_a1/}
}