TY - JOUR AU - Pokorný, Dušan AU - Zajíček, Luděk TI - A characterization of sets in ${\mathbb R}^2$ with DC distance function JO - Czechoslovak Mathematical Journal PY - 2022 SP - 1 EP - 38 VL - 72 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2021.0228-20/ DO - 10.21136/CMJ.2021.0228-20 LA - en ID - 10_21136_CMJ_2021_0228_20 ER -