%0 Journal Article %A A. V. Arutyunov %A B. D. Gel'man %T On the structure of the set of coincidence points %J Sbornik. Mathematics %D 2015 %P 370-388 %V 206 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2015_206_3_a1/ %G en %F SM_2015_206_3_a1