TY - JOUR AU - N. B. Butorina AU - S. A. Lykhina TI - Representation of an arbitrary number with weight sum of essential subtrees JO - Prikladnaâ diskretnaâ matematika PY - 2009 SP - 66 EP - 68 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PDM_2009_10_a33/ LA - ru ID - PDM_2009_10_a33 ER -