APA-referens (7:e uppl.)

Povill, A., Rubio, J., & Illas, F. (1992). Treating large intermediate spaces in the CIPSI method through a direct selected CI algorithm. Theoretica chimica acta, 82(3-4), 229-238. https://doi.org/10.1007/bf01113255

Chicago-referens (17:e uppl.)

Povill, A., J. Rubio, och F. Illas. "Treating Large Intermediate Spaces in the CIPSI Method Through a Direct Selected CI Algorithm." Theoretica Chimica Acta 82, no. 3-4 (1992): 229-238. https://doi.org/10.1007/bf01113255.

MLA-referens (9:e uppl.)

Povill, A., et al. "Treating Large Intermediate Spaces in the CIPSI Method Through a Direct Selected CI Algorithm." Theoretica Chimica Acta, vol. 82, no. 3-4, 1992, pp. 229-238, https://doi.org/10.1007/bf01113255.