TY - JOUR AU - Ivan Guintchev TI - A problem about set translations on the real line JO - Colloquium Mathematicum PY - 1982 SP - 209 EP - 214 VL - 46 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-46-2-209-214/ DO - 10.4064/cm-46-2-209-214 LA - en ID - 10_4064_cm_46_2_209_214 ER -