Porter، John M.؛ Rivinius، Thomas (2003). "Classical Be Stars". Publications of the Astronomical Society of the Pacific. ج. 115 ع. 812: 1153. Bibcode:2003PASP..115.1153P. DOI:10.1086/378307.
Secchi، A. (1867). "Schreiben des Herrn Prof.Secchi, Dir. Der Sternwarte des Collegio Romano, an den Herausgeber". Astronomische Nachrichten. ج. 68 ع. 4: 63. Bibcode:1866AN.....68...63S. DOI:10.1002/asna.18670680405.
Snow، T. P.؛ Marlborough، J. M. (1976). "Evidence for mass loss at moderate to high velocity in Be stars". Astrophysical Journal. ج. 203: L87. Bibcode:1976ApJ...203L..87S. DOI:10.1086/182025.
Massa، D. (1975). "The influence of rotation and stellar winds upon the Be phenomenon". Astronomical Society of the Pacific. ج. 87: 777. Bibcode:1975PASP...87..777M. DOI:10.1086/129842.
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Porter، John M.؛ Rivinius، Thomas (2003). "Classical Be Stars". Publications of the Astronomical Society of the Pacific. ج. 115 ع. 812: 1153. Bibcode:2003PASP..115.1153P. DOI:10.1086/378307.
Secchi، A. (1867). "Schreiben des Herrn Prof.Secchi, Dir. Der Sternwarte des Collegio Romano, an den Herausgeber". Astronomische Nachrichten. ج. 68 ع. 4: 63. Bibcode:1866AN.....68...63S. DOI:10.1002/asna.18670680405.
Snow، T. P.؛ Marlborough، J. M. (1976). "Evidence for mass loss at moderate to high velocity in Be stars". Astrophysical Journal. ج. 203: L87. Bibcode:1976ApJ...203L..87S. DOI:10.1086/182025.
Massa، D. (1975). "The influence of rotation and stellar winds upon the Be phenomenon". Astronomical Society of the Pacific. ج. 87: 777. Bibcode:1975PASP...87..777M. DOI:10.1086/129842.