%0 Journal Article %A V. N. Monakhov %T Two-dimensional and axisymmetric percolation problems with free boundaries in an inhomogeneous medium %J Doklady Akademii Nauk %D 1967 %P 1271-1273 %V 174 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_174_6_a9/ %G ru %F DAN_1967_174_6_a9