APA (7th ed.) Citation

Phelps, R. R. (1989). Convex functions, monotone operators, and differentiability. Springer. https://doi.org/10.1007/978-3-662-21569-2

Chicago Style (17th ed.) Citation

Phelps, Robert R. Convex Functions, Monotone Operators, and Differentiability. Berlin: Springer, 1989. https://doi.org/10.1007/978-3-662-21569-2.

MLA (9th ed.) Citation

Phelps, Robert R. Convex Functions, Monotone Operators, and Differentiability. Springer, 1989. https://doi.org/10.1007/978-3-662-21569-2.