Tham khảo Đám_mây_Hills

  1. see Oort cloud
  2. astronomie, astéroïdes et comètes
  3. Duncan, M.; Quinn, T.; Tremaine, S. (1987). “The Formation and Extent of the Solar System Comet Cloud”. The Astronomical Journal. 94: 1330. Bibcode:1987AJ.....94.1330D. doi:10.1086/114571.
  4. J. A. Fernandez (1997). “The Formation of the Oort cloud and the Primitive Galactic Environment”. Icarus. 129 (1): 106–119. Bibcode:1997Icar..129..106F. doi:10.1006/icar.1997.5754.
  5. Jack G. Hills (1981). “Comet showers and the steady-state infall of comets from the Oort Cloud”. Astronomical Journal. 86: 1730–1740. Bibcode:1981AJ.....86.1730H. doi:10.1086/113058.
  6. “Planetary Sciences: American and Soviet Research, Proceedings from the U.S.-U.S.S.R. Workshop on Planetary Sciences, p. 251”. 1991. Truy cập ngày 7 tháng 11 năm 2007.[liên kết hỏng]

Tài liệu tham khảo

WikiPedia: Đám_mây_Hills http://fermat.nap.edu/books/0309043336/html/251.ht... http://www.lpi.usra.edu/books/CometsII/7031.pdf http://villemin.gerard.free.fr/Science/Asteroid.ht... //doi.org/10.1006%2Ficar.1997.5754 //doi.org/10.1016%2F0019-1035(86)90060-6 //doi.org/10.1086%2F113058 //doi.org/10.1086%2F114571 https://ui.adsabs.harvard.edu/abs/1981AJ.....86.17... https://ui.adsabs.harvard.edu/abs/1986Icar...65...... https://ui.adsabs.harvard.edu/abs/1987AJ.....94.13...