APA (7th ed.) Citation

Augstein, R., Böhme, E., & Aust, S. Der Spiegel.

Chicago Style (17th ed.) Citation

Augstein, Rudolf, Erich Böhme, and Stefan Aust. Der Spiegel.

MLA (8th ed.) Citation

Augstein, Rudolf, et al. Der Spiegel.

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