TY - JOUR AU - E. R. Kosygina TI - On propagation of perturbations in two-dimensional porous media JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1995 SP - 36 EP - 40 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1995_3_a5/ LA - ru ID - VMUMM_1995_3_a5 ER -