APA (7th ed.) Citation

Launhardt, R., Quirrenbach, A., & Reffert, S. (2008). The ESPRI project: Narrow-angle astrometry with VLTI-PRIMA$nElektronische Ressource. A giant step.

Chicago Style (17th ed.) Citation

Launhardt, Ralf, Andreas Quirrenbach, and Sabine Reffert. "The ESPRI Project: Narrow-angle Astrometry with VLTI-PRIMA$nElektronische Ressource." A Giant Step 2008.

MLA (9th ed.) Citation

Launhardt, Ralf, et al. "The ESPRI Project: Narrow-angle Astrometry with VLTI-PRIMA$nElektronische Ressource." A Giant Step, 2008.