APA (7th ed.) Citation

Gazeau, J., Siegl, P., & Youssef, A. (2010). Krein Spaces in de Sitter Quantum Theories. Symmetry, Integrability and Geometry: Methods and Applications.

Chicago Style (17th ed.) Citation

Gazeau, J.P, P. Siegl, and A. Youssef. "Krein Spaces in De Sitter Quantum Theories." Symmetry, Integrability and Geometry: Methods and Applications 2010.

MLA (8th ed.) Citation

Gazeau, J.P, et al. "Krein Spaces in De Sitter Quantum Theories." Symmetry, Integrability and Geometry: Methods and Applications, 2010.

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