%0 Journal Article %A I. V. Kolos %A M. V. Kolos %T An approximate analytical solution of a filtration problem %J Numerical methods and programming %D 2008 %P 332-337 %V 9 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMP_2008_9_3_a12/ %G ru %F VMP_2008_9_3_a12