Wagner, J., & Bartelmann, M. (2015). Model-independent characterisation of strong gravitational lenses. Arxiv.
Chicago Style (17th ed.) CitationWagner, Jennifer, and Matthias Bartelmann. "Model-independent Characterisation of Strong Gravitational Lenses." Arxiv 2015.
MLA (9th ed.) CitationWagner, Jennifer, and Matthias Bartelmann. "Model-independent Characterisation of Strong Gravitational Lenses." Arxiv, 2015.
Warning: These citations may not always be 100% accurate.