Sokoloski، J. L. (20 يونيو 2003). "Symbiotic Stars as Laboratories for the Study of Accretion and Jets: A Call for Optical Monitoring". Journal of the American Association of Variable Star Observers. ج. 31 ع. 2: 89–102. arXiv:astro-ph/0403004. Bibcode:2003JAVSO..31...89S.
Skopal، Augustin (8 مايو 2008). "How to understand the light curves of symbiotic stars". Journal of the American Association of Variable Star Observers. ج. 36 ع. 1: 9. arXiv:0805.1222. Bibcode:2008JAVSO..36....9S.
Sokoloski، J. L. (20 يونيو 2003). "Symbiotic Stars as Laboratories for the Study of Accretion and Jets: A Call for Optical Monitoring". Journal of the American Association of Variable Star Observers. ج. 31 ع. 2: 89–102. arXiv:astro-ph/0403004. Bibcode:2003JAVSO..31...89S.
Skopal، Augustin (8 مايو 2008). "How to understand the light curves of symbiotic stars". Journal of the American Association of Variable Star Observers. ج. 36 ع. 1: 9. arXiv:0805.1222. Bibcode:2008JAVSO..36....9S.