[1]
E. . Algarni, “Distances to Planetary Nebulae Using Astrometric Data of Gaia DR2”, IJSBAR, vol. 54, no. 4, pp. 80–110, Nov. 2020, Accessed: Dec. 16, 2025. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/11904