@article{VNGU_2017_17_4_a5,
     author = {O. E. Zubelevich},
     title = {On a chain on cone problem},
     journal = {Sibirskij \v{z}urnal \v{c}istoj i prikladnoj matematiki},
     pages = {57--63},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VNGU_2017_17_4_a5/}
}