Chadid, M.; Wade, G. A.; Shorlin, S. L. S.; Landstreet, J. D. (2004). “No evidence of a strong magnetic field in the Blazhko star RR Lyrae”. Astronomy & Astrophysics. 413 (3): 1087–1093. Bibcode:2004A&A...413.1087C. doi:10.1051/0004-6361:20031600.
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Chadid, M.; Wade, G. A.; Shorlin, S. L. S.; Landstreet, J. D. (2004). “No evidence of a strong magnetic field in the Blazhko star RR Lyrae”. Astronomy & Astrophysics. 413 (3): 1087–1093. Bibcode:2004A&A...413.1087C. doi:10.1051/0004-6361:20031600.