APA (7th ed.) Citation

Wambsganß, J. (1998). Gravitational lensing in astronomy. Arxiv.

Chicago Style (17th ed.) Citation

Wambsganß, Joachim. "Gravitational Lensing in Astronomy." Arxiv 1998.

MLA (9th ed.) Citation

Wambsganß, Joachim. "Gravitational Lensing in Astronomy." Arxiv, 1998.

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