TY - JOUR AU - Pokorný, Dušan TI - Nonconvex Lipschitz function in plane which is locally convex outside a discontinuum JO - Commentationes Mathematicae Universitatis Carolinae PY - 2014 SP - 509 EP - 521 VL - 55 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_2014__55_4_a7/ LA - en ID - CMUC_2014__55_4_a7 ER -