APA (7th ed.) Citation

Gerhardt, C. (2010). Quantum cosmological Friedman models with a Yang-Mills field and positive energy levels. Classical and quantum gravity, 27(3), . https://doi.org/10.1088/0264-9381/27/3/035007

Chicago Style (17th ed.) Citation

Gerhardt, Claus. "Quantum Cosmological Friedman Models with a Yang-Mills Field and Positive Energy Levels." Classical and Quantum Gravity 27, no. 3 (2010). https://doi.org/10.1088/0264-9381/27/3/035007.

MLA (9th ed.) Citation

Gerhardt, Claus. "Quantum Cosmological Friedman Models with a Yang-Mills Field and Positive Energy Levels." Classical and Quantum Gravity, vol. 27, no. 3, 2010, https://doi.org/10.1088/0264-9381/27/3/035007.