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????????? [ ???????? ]

  1. Curtis, H. D. (????)? "Novae in Spiral Nebulae and the Island Universe Theory"? Publications of the Astronomical Society of the Pacific ? 100 : 6? ????? : 10.1086/132128 ? ?????? : 1988PASP..100....6C ?  
  2. Hubble, E. P. (????)? "A spiral nebula as a stellar system, Messier 31" ? Astrophysical Journal ? 69 : 103?158? ????? : 10.1086/143167 ? ?????? : 1929ApJ....69..103H ?  
  3. Hubble, E. P.; Humason, M. L. (????)? "The Velocity-Distance Relation among Extra-Galactic Nebulae" ? Astrophysical Journal ? 74 : 43?  
  4. Penzias, A. A. & Wilson, R. W. 1965, A Measurement of Excess Antenna Temperature at 4080 Mc/s, Astrophysical Journal, vol. 142, p.419-421
  5. Adam G. Riess et al. 1998, Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant, The Astronomical Journal, 116, #3
  6. Guth A.,H.. 1981, Inflationary universe: A possible solution to the horizon and flatness problems, Phys. Rev. D 23, 347?356
  7. van Dokkum, Pieter G; Conroy, Charlie (????)? "A substantial population of low-mass stars in luminous elliptical galaxies"? Nature ? 468 : 3?  
  8. , E., Churchwell; ? ???????? (????)? "The Spitzer/GLIMPSE surveys: a new view of the Milky Way"? Publications of the Astronomical Society of the Pacific ? 121 (877): 213?230? ????? : doi:10.1086/597811 |doi= ?? ??? ??????? ???? ( ??????? ) ? ?????? : 2009PASP..121..213C ?  
  9. Dame, T. M.; Hartmann, D.; Thaddeus, P. (????)? "The Milky Way in molecular clouds: A new complete CO survey"? The Astrophysical Journal ? 547 (2): 792?813? arXiv : astro-ph/0009217 অবাধে প্রবেশযোগ্য? ??????????   118888462 ? ????? : 10.1086/318388 ? ?????? : 2001ApJ...547..792D ?  
  10. Eisenstein, D. J. et al. 2005, Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies, The Astrophysical Journal, Volume 633, Issue 2, pp. 560-574