APA (7th ed.) Citation

Ade, P. A., & Pettorino, V. (2015). Planck 2015 results: XX. Constraints on inflation. Arxiv.

Chicago Style (17th ed.) Citation

Ade, Peter A., and Valeria Pettorino. "Planck 2015 Results: XX. Constraints on Inflation." Arxiv 2015.

MLA (9th ed.) Citation

Ade, Peter A., and Valeria Pettorino. "Planck 2015 Results: XX. Constraints on Inflation." Arxiv, 2015.

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