@article{DAN_1967_173_3_a1,
     author = {L. P. Vlasov},
     title = {On {Cebysev} sets},
     journal = {Doklady Akademii Nauk},
     pages = {491--494},
     publisher = {mathdoc},
     volume = {173},
     number = {3},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_173_3_a1/}
}