(en) Saul J. Adelman, « uvby FCAPT Photometry of the Magnetic Chemically Peculiar Stars 36 Aurigae, HR 2722, 13 Andromedae, and HD 220147 », The Publications of the Astronomical Society of the Pacific, , p. 476–482 (DOI10.1086/429640, Bibcode2005PASP..117..476A)
(en) Saul J. Adelman, « uvby FCAPT Photometry of the Magnetic Chemically Peculiar Stars 36 Aurigae, HR 2722, 13 Andromedae, and HD 220147 », The Publications of the Astronomical Society of the Pacific, , p. 476–482 (DOI10.1086/429640, Bibcode2005PASP..117..476A)