@article{DAN_1982_266_6_a5,
     author = {S. V. Yushmanov},
     title = {Covering a graph by a system of shortest simple chains},
     journal = {Doklady Akademii Nauk},
     pages = {1303--1305},
     publisher = {mathdoc},
     volume = {266},
     number = {6},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_266_6_a5/}
}