Tham khảo NGC_4414

  1. 1 2 3 4 5 6 7 8 “NASA/IPAC Extragalactic Database”. Results for NGC 4414. Truy cập ngày 25 tháng 11 năm 2006.
  2. ↑ “Pattern Speeds BIMA-SONG Galaxies with Molecule-Dominated ISMs Using the Tremaine-Weinberg Method”. (Turner et al. 1998). arXiv:astro-ph/0406426. |url= trống hay bị thiếu (trợ giúp)
  3. ↑ Frattare, L. M.; Zurek, D. R. (1997). “The Discovery of a Possible Luminous Blue Variable in NGC 4414”. American Astronomical Society, 194th AAS Meeting, #82.02; Bulletin of the American Astronomical Society. 31: 967. Bibcode:1999AAS...194.8202F.
  4. ↑ Braine, J.; Brouillet, N.; Baudry, A. (1997). “The anatomy of an isolated spiral galaxy: NGC 4414”. Astronomy and Astrophysics. 318: 19–28. Bibcode:1997A&A...318...19B.
  5. ↑ Braine, J.; Combes, F.; van Driel, W. (1993). “NGC 4414: A flocculent galaxy with a high gas surface density”. Astronomy and Astrophysics. 280 (2): 451–467. Bibcode:1993A&A...280..451B.