Reihe Lecture Notes in MathematicsRobert R. Phelps × Convex Functions, Monotone Operators and Differentiability Robert R. PhelpsSpringer BerlineBook2013 Convex Functions, Monotone Operators and Differentiability Robert R. PhelpsSpringer BerlineBook2009 Lectures on Choquet's Theorem Robert R. PhelpsSpringer BerlineBook2003 Lectures on Choquet's Theorem Robert R. PhelpsSpringer BerlinSoftcover2001 Convex Functions, Monotone Operators and Differentiability Robert R. PhelpsSpringer BerlinSoftcover1993