%0 Journal Article %A Banaś, Józef %A Ben Amar, Afif %T Measures of noncompactness in locally convex spaces and fixed point theory for the sum of two operators on unbounded convex sets %J Commentationes Mathematicae Universitatis Carolinae %D 2013 %P 21-40 %V 54 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_2013__54_1_a2/ %G en %F CMUC_2013__54_1_a2