APA (7th ed.) Citation

Bartelmann, M. (2002). Strong and weak lensing by galaxy clusters. Arxiv.

Chicago Style (17th ed.) Citation

Bartelmann, Matthias. "Strong and Weak Lensing by Galaxy Clusters." Arxiv 2002.

MLA (9th ed.) Citation

Bartelmann, Matthias. "Strong and Weak Lensing by Galaxy Clusters." Arxiv, 2002.

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