APA (7th ed.) Citation

Alexandrov, A. N., Koval, S. M., & Zhdanov, V. I. (2012). Gravitational lens equation: Critical solutions and magnification near folds and cusps.

Chicago Style (17th ed.) Citation

Alexandrov, A. N., S. M. Koval, and V. I. Zhdanov. Gravitational Lens Equation: Critical Solutions and Magnification Near Folds and Cusps. 2012.

MLA (8th ed.) Citation

Alexandrov, A. N., et al. Gravitational Lens Equation: Critical Solutions and Magnification Near Folds and Cusps. 2012.

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