Pons, J. M., Salisbury, D. C., & Sundermeyer, K. A. (2009). Revisiting observables in generally covariant theories in the light of gauge fixing methods. Physical review. D, Particles, fields, gravitation, and cosmology, 80(8), . https://doi.org/10.1103/PhysRevD.80.084015
Chicago Style (17th ed.) CitationPons, J. M., D. C. Salisbury, and K. A. Sundermeyer. "Revisiting Observables in Generally Covariant Theories in the Light of Gauge Fixing Methods." Physical Review. D, Particles, Fields, Gravitation, and Cosmology 80, no. 8 (2009). https://doi.org/10.1103/PhysRevD.80.084015.
MLA (9th ed.) CitationPons, J. M., et al. "Revisiting Observables in Generally Covariant Theories in the Light of Gauge Fixing Methods." Physical Review. D, Particles, Fields, Gravitation, and Cosmology, vol. 80, no. 8, 2009, https://doi.org/10.1103/PhysRevD.80.084015.