TY - JOUR AU - T. I. Fedoryaeva TI - Exact upper estimates of the number of different balls of given radius for the graphs with fixed number of vertexes and diameter JO - Diskretnyj analiz i issledovanie operacij PY - 2009 SP - 74 EP - 92 VL - 16 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DA_2009_16_6_a6/ LA - ru ID - DA_2009_16_6_a6 ER -