APA (7th ed.) Citation

Grebel, E. K., Odenkirchen, M., & Bailer-Jones, C. A. L. (2003). An extragalactic reference frame for GAIA and SIM using SDSS QSOs. GAIA spectroscopy, science and technology.

Chicago Style (17th ed.) Citation

Grebel, Eva K., Michael Odenkirchen, and Coryn A. L. Bailer-Jones. "An Extragalactic Reference Frame for GAIA and SIM Using SDSS QSOs." GAIA Spectroscopy, Science and Technology 2003.

MLA (9th ed.) Citation

Grebel, Eva K., et al. "An Extragalactic Reference Frame for GAIA and SIM Using SDSS QSOs." GAIA Spectroscopy, Science and Technology, 2003.