%0 Journal Article %A Heinig, Hans P. %A Kufner, Alois %T Weighted Friedrichs inequalities in amalgams %J Czechoslovak Mathematical Journal %D 1993 %P 285-308 %V 43 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1993.128404/ %R 10.21136/CMJ.1993.128404 %G en %F 10_21136_CMJ_1993_128404