TY - JOUR AU - Yu. E. Hohlov AU - D. V. Prokhorov AU - A. Yu. Vasil'ev TI - On geometrical properties of free boundaries in the Hele--Shaw flows moving boundary problem JO - Lobachevskii journal of mathematics PY - 1998 SP - 3 EP - 12 VL - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/LJM_1998_1_a0/ LA - en ID - LJM_1998_1_a0 ER -