APA (7th ed.) Citation

Timmermann, R., Lemke, P., & Kottmeier, C. (2008). Formation and maintenance of a polynya in the Weddell Sea.

Chicago Style (17th ed.) Citation

Timmermann, R., Peter Lemke, and Christoph Kottmeier. Formation and Maintenance of a Polynya in the Weddell Sea. 2008.

MLA (9th ed.) Citation

Timmermann, R., et al. Formation and Maintenance of a Polynya in the Weddell Sea. 2008.