---------------------------------------------------------------- Couplage \'el\'ements finis-\'equations int\'egrales pour la r\'esolution des \'equations de Maxwell en milieu h\'et\'erog\`{e}ne par Habib Ammari et Jean-Claude N\'ed\'elec Nous d\'ecrivons une m\'ethode de couplage \'el\'ements finis-\'equations int\'egrales pour la r\'esolution des \'equations de Maxwell en milieu h\'et\'erog\`{e}ne et nous pr\'esentons une \'etude de l'erreur d'approximation. Coupling of finite and boundary element methods for the transmission problem for the time harmonic Maxwell equations A coupling procedure for the transmission problem for the time-harmonic Maxwell equations is considered. A saddle point structure is shown to hold for the exact as well as the discretized problem. he whole paper is available as a compressed Postscript file by internet procedure FTP anonymous on host barbes.polytechnique.fr ( 129.104.4.100) in the directory pub/RI/1997 under the name ammari_nedelec_372.oct.ps.gz or by Netscape or any other www client via the CMAP www server "http://www.cmap.polytechnique.fr/"