APA (7th ed.) Citation

Lorenz, F., & Roquette, P. (2011). Cahit Arf and his invariant. Mitteilungen der Mathematischen Gesellschaft in Hamburg, 30, .

Chicago Style (17th ed.) Citation

Lorenz, Falko, and Peter Roquette. "Cahit Arf and His Invariant." Mitteilungen Der Mathematischen Gesellschaft in Hamburg 30 (2011).

MLA (9th ed.) Citation

Lorenz, Falko, and Peter Roquette. "Cahit Arf and His Invariant." Mitteilungen Der Mathematischen Gesellschaft in Hamburg, vol. 30, 2011.

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