Citation:Dupree A K, Baliunas S L, Guinan E F, Hartmann L, Nassiopoulos G E, Sonneborn G. Periodic Photospheric and Chromospheric Modulation in Alpha Orionis (Betelgeuse). \apjl. 1987;317 :L85.Download CitationDOI BibTex Tagged XML Date Published:jun DOI