Royer, F.; et al, Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i, Astronomy and Astrophysics, October 2002
al. WASP-4b: A 12th Magnitude Transiting Hot Jupiter in the Southern Hemisphere. The Astrophysical Journal Letters. March 2008, 675 (2): L113–L116. Bibcode:2008ApJ