APA (7th ed.) Citation

Bianchi, E., & Hellmann, F. (2013). The Construction of Spin Foam Vertex Amplitudes. Symmetry, Integrability and Geometry: Methods and Applications.

Chicago Style (17th ed.) Citation

Bianchi, E., and F. Hellmann. "The Construction of Spin Foam Vertex Amplitudes." Symmetry, Integrability and Geometry: Methods and Applications 2013.

MLA (8th ed.) Citation

Bianchi, E., and F. Hellmann. "The Construction of Spin Foam Vertex Amplitudes." Symmetry, Integrability and Geometry: Methods and Applications, 2013.

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