APA (7th ed.) Citation

Bartelmann, M. (1999). High-redshift quasars lensed by spiral galaxies. Arxiv.

Chicago Style (17th ed.) Citation

Bartelmann, Matthias. "High-redshift Quasars Lensed by Spiral Galaxies." Arxiv 1999.

MLA (9th ed.) Citation

Bartelmann, Matthias. "High-redshift Quasars Lensed by Spiral Galaxies." Arxiv, 1999.

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