@article{MZM_2005_77_1_a9,
     author = {D. Repov\v{s} and M. B. Skopenkov and M. Cencelj},
     title = {A short proof of the twelve-point theorem},
     journal = {Matemati\v{c}eskie zametki},
     pages = {117--120},
     publisher = {mathdoc},
     volume = {77},
     number = {1},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2005_77_1_a9/}
}