TY - JOUR AU - A. E. Lipin TI - The problem on the measure of the union of line segments in the plane with restrictions on the set of their ends JO - Sibirskie èlektronnye matematičeskie izvestiâ PY - 2021 SP - 1319 EP - 1331 VL - 18 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SEMR_2021_18_2_a71/ LA - ru ID - SEMR_2021_18_2_a71 ER -