APA (7th ed.) Citation

Johansen, S. (1973). The Extremal Convex Functions.

Chicago Style (17th ed.) Citation

Johansen, Søren. The Extremal Convex Functions. 1973.

MLA (9th ed.) Citation

Johansen, Søren. The Extremal Convex Functions. 1973.

Warning: These citations may not always be 100% accurate.