APA (7th ed.) Citation

Neese, F., Wennmohs, F., Becker, U., & Riplinger, C. (2020). The ORCA quantum chemistry program package. The Journal of chemical physics, 152(22), 224108. https://doi.org/10.1063/5.0004608

Chicago Style (17th ed.) Citation

Neese, Frank, Frank Wennmohs, Ute Becker, and Christoph Riplinger. "The ORCA Quantum Chemistry Program Package." The Journal of Chemical Physics 152, no. 22 (2020): 224108. https://doi.org/10.1063/5.0004608.

MLA (9th ed.) Citation

Neese, Frank, et al. "The ORCA Quantum Chemistry Program Package." The Journal of Chemical Physics, vol. 152, no. 22, 2020, p. 224108, https://doi.org/10.1063/5.0004608.