%0 Journal Article %A Chbani, Zaki %A Riahi, Hassan %T Variational Principles for Monotone and Maximal Bifunctions %J Serdica Mathematical Journal %D 2003 %P 159-166 %V 29 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_2003_29_2_a4/ %G en %F SMJ2_2003_29_2_a4