TY - JOUR AU - O. R. Musin AU - A. S. Tarasov TI - Extremal problems of circle packings on a~sphere and irreducible contact graphs JO - Informatics and Automation PY - 2015 SP - 133 EP - 148 VL - 288 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2015_288_a8/ LA - ru ID - TRSPY_2015_288_a8 ER -