Stanghellini, Letizia; Shaw, Richard A.; Villaver, Eva (December 10, 2008). ”The Magellanic Cloud Calibration of the Galactic Planetary Nebula Distance Scale”. The Astrophysical Journal 689 (1): sid. 194–202. doi:10.1086/592395. Bibcode: 2008ApJ...689..194S.
Tylenda, R.; Siódmiak, N.; Górny, S. K.; Corradi, R. L. M.; Schwarz, H. E. (July 2003). ”Angular dimensions of planetary nebulae”. Astronomy and Astrophysics 405 (2): sid. 627–637. doi:10.1051/0004-6361:20030645. Bibcode: 2003A&A...405..627T.
Weidmann, W. A.; Gamen, R. (July 2011). ”Central stars of planetary nebulae. II. New OB-type and emission-line stars”. Astronomy & Astrophysics 531: sid. 11. doi:10.1051/0004-6361/201116494. A172. Bibcode: 2011A&A...531A.172W.
Weidmann, W. A.; Mari, M. B.; Schmidt, E. O.; Gaspar, G.; Miller Bertolami, M. M.; Oio, G. A.; Gutiérrez-Soto, L. A.; Volpe, M. G.; et al. (August 2020). ”Catalogue of the central stars of planetary nebulae. Expanded edition”. Astronomy & Astrophysics 640: sid. 17. doi:10.1051/0004-6361/202037998. A10. Bibcode: 2020A&A...640A..10W.
Ali, A.; Dopita, M. A. (August 2017). ”IFU Spectroscopy of Southern Planetary Nebulae V: Low-Ionisation Structures”. Publications of the Astronomical Society of Australia 34: sid. 18. doi:10.1017/pasa.2017.30. e036. Bibcode: 2017PASA...34...36A.
Ruiz, María Teresa; Peimbert, Antonio; Peimbert, Manuel; Esteban, César (September 2003). ”Very Large Telescope Echelle Spectrophotometry of the Planetary Nebula NGC 5307 and Temperature Variations”. The Astrophysical Journal 595 (1): sid. 247–258. doi:10.1086/377255. Bibcode: 2003ApJ...595..247R.
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Stanghellini, Letizia; Shaw, Richard A.; Villaver, Eva (December 10, 2008). ”The Magellanic Cloud Calibration of the Galactic Planetary Nebula Distance Scale”. The Astrophysical Journal 689 (1): sid. 194–202. doi:10.1086/592395. Bibcode: 2008ApJ...689..194S.
Tylenda, R.; Siódmiak, N.; Górny, S. K.; Corradi, R. L. M.; Schwarz, H. E. (July 2003). ”Angular dimensions of planetary nebulae”. Astronomy and Astrophysics 405 (2): sid. 627–637. doi:10.1051/0004-6361:20030645. Bibcode: 2003A&A...405..627T.
Streicher, Magda (June 2008). ”Centaurus, a constellation like no other”. Monthly Notes of the Astronomical Society of South Africa 67 (5 and 6): sid. 95–99. Bibcode: 2008MNSSA..67...95S.
Weidmann, W. A.; Gamen, R. (July 2011). ”Central stars of planetary nebulae. II. New OB-type and emission-line stars”. Astronomy & Astrophysics 531: sid. 11. doi:10.1051/0004-6361/201116494. A172. Bibcode: 2011A&A...531A.172W.
Weidmann, W. A.; Mari, M. B.; Schmidt, E. O.; Gaspar, G.; Miller Bertolami, M. M.; Oio, G. A.; Gutiérrez-Soto, L. A.; Volpe, M. G.; et al. (August 2020). ”Catalogue of the central stars of planetary nebulae. Expanded edition”. Astronomy & Astrophysics 640: sid. 17. doi:10.1051/0004-6361/202037998. A10. Bibcode: 2020A&A...640A..10W.
Ali, A.; Dopita, M. A. (August 2017). ”IFU Spectroscopy of Southern Planetary Nebulae V: Low-Ionisation Structures”. Publications of the Astronomical Society of Australia 34: sid. 18. doi:10.1017/pasa.2017.30. e036. Bibcode: 2017PASA...34...36A.
Ruiz, María Teresa; Peimbert, Antonio; Peimbert, Manuel; Esteban, César (September 2003). ”Very Large Telescope Echelle Spectrophotometry of the Planetary Nebula NGC 5307 and Temperature Variations”. The Astrophysical Journal 595 (1): sid. 247–258. doi:10.1086/377255. Bibcode: 2003ApJ...595..247R.
Bond, Howard E. (2000). Kastner, J. H.; Soker, N.; Rappaport, S.. red. Binarity of Central Stars of Planetary Nebulae. ASP Conference Series. "199". 115. ISBN 1-58381-026-9. Bibcode: 2000ASPC..199..115B.
