APA (7th ed.) Citation

Ekeland, I., & Temam, R. (1999). Convex analysis and variational problems. SIAM.

Chicago Style (17th ed.) Citation

Ekeland, I., and Roger Temam. Convex Analysis and Variational Problems. Philadelphia: SIAM, 1999.

MLA (9th ed.) Citation

Ekeland, I., and Roger Temam. Convex Analysis and Variational Problems. SIAM, 1999.