TY - JOUR AU - D. P. Il'yutko TI - Geometry of extremal networks on $\lambda$-normed planes JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 2005 SP - 52 EP - 54 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_2005_4_a11/ LA - ru ID - VMUMM_2005_4_a11 ER -