APA (7th ed.) Citation

Timmermann, R., Lemke, P., & Kottmeier, C. (2007). Formation and maintenance of a polynya in the Weddell Sea. American Geophysical Union.

Chicago Style (17th ed.) Citation

Timmermann, R., P. Lemke, and Ch Kottmeier. Formation and Maintenance of a Polynya in the Weddell Sea. American Geophysical Union, 2007.

MLA (9th ed.) Citation

Timmermann, R., et al. Formation and Maintenance of a Polynya in the Weddell Sea. American Geophysical Union, 2007.