TY - JOUR AU - A. V. Kel'manov AU - A. V. Pyatkin AU - V. I. Khandeev TI - Quadratic Euclidean 1-Mean and 1-Median 2-Clustering Problem with Constraints on the Size of the Clusters: Complexity and Approximability JO - Trudy Instituta matematiki i mehaniki PY - 2019 SP - 69 EP - 78 VL - 25 IS - 4 UR - http://geodesic.mathdoc.fr/item/TIMM_2019_25_4_a6/ LA - ru ID - TIMM_2019_25_4_a6 ER -