1. H. Attouch and H. Brezis, Duality for the sum of convex functions in general Banach spaces, in J. Barroso (ed.), Aspects of Mathematics and its Applications, Elsevier Science Publishers, Amsterdam, 1986, 125–133.
2. S. Banach, Sur les fonctionnelles linéaires II, Studia Math. 1 (1929), 223–239.
3. J. Borwein, Convex relations in analysis and optimization, in S. Schaible and T. Ziemba (eds.), Generalized Concavity in Optimization and Economics, Academic Press, New York, 1981, 335–376.
4. J. Borwein, Adjoint process duality, Math. Oper. Res. 8 (1983), 403–434.
5. G. Buskes, The Hahn-Banach theorem surveyed, Dissertationes Math. 327 (1993), 49