APA (7th ed.) Citation

Ullán, A., Goicoechea, L. J., Mun˜oz, J. A., Mediavilla, E., Serra-Ricart, M., Puga, E., . . . Barrena, R. (2003). GLITP optical monitoring of QSO 0957+561: VR light curves and variability. Monthly Notices of the Royal Astronomical Society, 346(2), 415. https://doi.org/10.1046/j.1365-2966.2003.07091.x

Chicago Style (17th ed.) Citation

Ullán, A., L. J. Goicoechea, J. A. Mun˜oz, E. Mediavilla, M. Serra-Ricart, E. Puga, D. Alcalde, A. Oscoz, and R. Barrena. "GLITP Optical Monitoring of QSO 0957+561: VR Light Curves and Variability." Monthly Notices of the Royal Astronomical Society 346, no. 2 (2003): 415. https://doi.org/10.1046/j.1365-2966.2003.07091.x.

MLA (9th ed.) Citation

Ullán, A., et al. "GLITP Optical Monitoring of QSO 0957+561: VR Light Curves and Variability." Monthly Notices of the Royal Astronomical Society, vol. 346, no. 2, 2003, p. 415, https://doi.org/10.1046/j.1365-2966.2003.07091.x.