%0 Journal Article %A M. Yu. Novikov %A A. S. Sorin %A V. Ya. Chernyak %T Fluctuation forces in a~three-layer medium with rough boundaries.~III. Aspects of perturbation theory in the Casimir range %J Teoretičeskaâ i matematičeskaâ fizika %D 1992 %P 474-482 %V 91 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1992_91_3_a11/ %G ru %F TMF_1992_91_3_a11