TY - JOUR AU - A. S. Bystrikov TI - On the Equivalence of Elementary Chains of Monoidal Transformations of the Projective Plane JO - Matematičeskie zametki PY - 2003 SP - 649 EP - 656 VL - 73 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2003_73_5_a1/ LA - ru ID - MZM_2003_73_5_a1 ER -