APA (7th ed.) Citation

Song, Y., Fu, J., & Cen, Y. (2025). The existence and upper bound for stable photon spheres in static spherically symmetric black holes.

Chicago Style (17th ed.) Citation

Song, Yong, Jiaqi Fu, and Yiting Cen. The Existence and Upper Bound for Stable Photon Spheres in Static Spherically Symmetric Black Holes. 2025.

MLA (9th ed.) Citation

Song, Yong, et al. The Existence and Upper Bound for Stable Photon Spheres in Static Spherically Symmetric Black Holes. 2025.