%0 Journal Article %A Dell'Antonio, G. F. %A Figari, R. %A Orlandi, E. %T An approach through orthogonal projections to the study of inhomogeneous or random media with linear response %J Annales de l'I.H.P. Physique théorique %D 1986 %P 1-28 %V 44 %N 1 %I Gauthier-Villars %U http://www.numdam.org/item/AIHPA_1986__44_1_1_0/ %G en %F AIHPA_1986__44_1_1_0