TY - JOUR AU - Anna Lempert AU - Alexander Kazakov AU - Quang Mung Le TI - On Reserve and Double Covering Problems for the Sets With Non-Euclidean Metrics JO - Yugoslav journal of operations research PY - 2019 SP - 69 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/YJOR_2019_29_1_a4/ LA - en ID - YJOR_2019_29_1_a4 ER -