%0 Journal Article %A A. R. Maikov %T On approximate open boundary conditions for the wave equation and the Klein-Gordon equation %J Numerical methods and programming %D 2005 %P 290-303 %V 6 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMP_2005_6_1_a28/ %G ru %F VMP_2005_6_1_a28