TY - JOUR AU - A. O. Ivanov AU - A. A. Tuzhilin TI - The geometry of minimal networks with a~given topology and a~fixed boundary JO - Izvestiya. Mathematics PY - 1997 SP - 1231 EP - 1263 VL - 61 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1997_61_6_a4/ LA - en ID - IM2_1997_61_6_a4 ER -