Extremal Structure of Convex Sets in Spaces Not Containing co. V.E. Zizler; J.H.M. Whitfield — 1988 Mathematische Zeitschrift
Optimization of Convex function on w*-compact sets. V.E. Zizler; R.A. Poliquin — 1990 Manuscripta mathematica
The three space problem for smooth partitions of unity and C(K) spaces. R. Deville; G. Godefroy; V.E. Zizler — 1990 Mathematische Annalen