@article{IIMI_2012_1_a26,
     author = {G. G. Islamov and Yu. V. Kogan},
     title = {On {{\CYRS}hebyshev{\textquoteright}s} systems},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {62--63},
     year = {2012},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2012_1_a26/}
}