อ้างอิง ของ หลุมดำมวลปานกลาง

  1. ↑ "Black Hole Boldly Goes Where No Black Hole Has Gone Before". ESA News. January 3, 2007. สืบค้นเมื่อ 2006-05-24.
  2. ↑ Maccarone, T.J.; และคณะ (2007), "A black hole in a globular cluster", Nature, 455: 183–185, doi:10.1038/nature05434CS1 maint: Explicit use of et al. (link)
  3. ↑ Patruno, A.; Portegies Zwart, S.; Dewi, J.; Hopman, C. (2006). "The ultraluminous X-ray source in M82: an intermediate-mass black hole with a giant companion". Monthly Notices of the Royal Astronomical Society: Letters. 370 (1): L6–L9. doi:10.1111/j.1745-3933.2006.00176.x.CS1 maint: Multiple names: authors list (link)