%0 Journal Article %A Ewa Ligocka %T Levi forms, differential forms of type (0,1) and pseudoconvexity in Banach spaces %J Annales Polonici Mathematici %D 1976 %P 63-69 %V 33 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-33-1-63-69/ %R 10.4064/ap-33-1-63-69 %G en %F 10_4064_ap_33_1_63_69