TY - JOUR AU - A. S. Pivivarova AU - A. A. Steryakov TI - Johansen–Sornette hierarchical model of financial crashes and its ultrametric generalization JO - Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences PY - 2011 SP - 162 EP - 169 VL - 123 IS - 2 UR - http://geodesic.mathdoc.fr/item/VSGTU_2011_123_2_a20/ LA - ru ID - VSGTU_2011_123_2_a20 ER -