1. A Catalog of Magnetic Stars.
2. Secular variability of the longitudinal magnetic field of the Ap star Equ
3. Bychkov, V. D., Bychkova, L. V., & Madej, J. 2015, in Physics and Evolution of Magnetic and Related Stars, eds. Y. Y. Balega, I. I. Romanyuk, & D. O. Kudryavtsev, ASP Conf. Ser., 494, 100
4. ESA 1997, The HIPPARCOS and TYCHO catalogues, SP 1200 (Noordwijk: ESA)