APA

Ekeland I., Temam R. & Ekeland I. (1976). Convex analysis and variational problems. Amsterdam [u.a.]: North-Holland [u.a.].

Chicago

Ekeland Ivar, Temam Roger and Ekeland Ivar. 1976. Convex analysis and variational problems. Amsterdam [u.a.]: North-Holland [u.a.].

Harvard

Ekeland I., Temam R. and Ekeland I. (1976). Convex analysis and variational problems. Amsterdam [u.a.]: North-Holland [u.a.].

MLA

Ekeland Ivar, Temam Roger and Ekeland Ivar. Convex analysis and variational problems. Amsterdam [u.a.]: North-Holland [u.a.]. 1976.