TY - JOUR AU - V. A. Kolmykov TI - Inert matrices and matchings in partially oriented trees JO - Diskretnaya Matematika PY - 2003 SP - 119 EP - 125 VL - 15 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DM_2003_15_4_a7/ LA - ru ID - DM_2003_15_4_a7 ER -