APA (7th ed.) Citation

Freitag, J., Kipfstuhl, S., Hörhold, M., Wegner, A., Wilhelms, F., & Bigler, M. (2012). Impurity controlled firn densification.

Chicago Style (17th ed.) Citation

Freitag, Johannes, Sepp Kipfstuhl, Maria Hörhold, Anna Wegner, Frank Wilhelms, and Matthias Bigler. Impurity Controlled Firn Densification. 2012.

MLA (8th ed.) Citation

Freitag, Johannes, et al. Impurity Controlled Firn Densification. 2012.

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