APA (7th ed.) Citation

Kormann, R., Schneider, P., & Bartelmann, M. (1993). Isothermal elliptical gravitational lens models. Max-Planck-Inst. für Astrophysik.

Chicago Style (17th ed.) Citation

Kormann, Robert, Peter Schneider, and Matthias Bartelmann. Isothermal Elliptical Gravitational Lens Models. Garching: Max-Planck-Inst. für Astrophysik, 1993.

MLA (9th ed.) Citation

Kormann, Robert, et al. Isothermal Elliptical Gravitational Lens Models. Max-Planck-Inst. für Astrophysik, 1993.