TY - JOUR AU - V. F. Nikitin AU - N. N. Smirnov AU - V. R. Dushin TI - Unstable displacement of a liquid from a porous medium with variable permeability JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 2006 SP - 33 EP - 40 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_2006_2_a6/ LA - ru ID - VMUMM_2006_2_a6 ER -