TY - JOUR AU - V. E. Alekseev AU - S. V. Sorochan TI - On the entropy of hereditary classes of oriented graphs JO - Diskretnyj analiz i issledovanie operacij PY - 2000 SP - 20 EP - 28 VL - 7 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DA_2000_7_4_a2/ LA - ru ID - DA_2000_7_4_a2 ER -