@article{MZM_2008_83_2_a9,
     author = {L. P. Stunzhas},
     title = {Local {Singularities} of {Chord} {Sets}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {286--304},
     publisher = {mathdoc},
     volume = {83},
     number = {2},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2008_83_2_a9/}
}