Chapter Smith, Robert W.; (2014)
The “Great Plan of the Visible Universe”: William Huggins, Evolutionary Naturalism and the Nature of the Nebulae (/isis/citation/CBB001202318/)

Book Bratton, Mark; (2011)
The Complete Guide to the Herschel Objects: Sir William Herschel's Star Clusters, Nebulae, and Galaxies (/isis/citation/CBB001252581/)

Article Hoskin, Michael; (2008)
Nebulae, Star Clusters and the Milky Way: From Galileo to William Herschel (/isis/citation/CBB000930134/)

Article Brémond, Alain G.; (2009)
V. M. Slipher's Discovery of the Rotation of Spiral Nebulae and the Controversy with Bertil Lindblad (/isis/citation/CBB001034791/)

Article Smith, Robert W.; (2009)
Beyond the Galaxy: The Development of Extragalactic Astronomy 1885--1965, Part 2 (/isis/citation/CBB000930146/)

Article Hoskin, Michael; (2011)
William Herschel and the Nebulae, Part 2: 1785--1818 (/isis/citation/CBB001023571/)

Article Hoskin, Michael; (2014)
William Herschel and the Planetary Nebulae (/isis/citation/CBB001451086/)

Article Hoskin, Michael; (2005)
Unfinished Business: William Herschel's Sweeps for Nebulae (/isis/citation/CBB000773902/)

Article Hoskin, Michael; (2011)
William Herschel and the Nebulae, Part 1: 1774--1784 (/isis/citation/CBB001023564/)

Article Paul, E. Robert; (1981)
The death of a research programme: Kapteyn and the Dutch astronomical community (/isis/citation/CBB000008991/)

Chapter Hoskin, Michael; (1977)
The English background to the cosmology of Wright and Herschel (/isis/citation/CBB000028210/)

Article Wolfgang Steinicke; (2016)
William Herschel's 'Hole in the Sky' and the discovery of dark nebulae (/isis/citation/CBB568623091/)

Book Becker, Barbara J.; (2011)
Unravelling Starlight: William and Margaret Huggins and the Rise of the New Astronomy (/isis/citation/CBB001231929/)

Book Hoskin, Michael A.; (2011)
Discoverers of the Universe: William and Caroline Herschel (/isis/citation/CBB001024756/)

Book Hoskin, Michael A.; (2007)
The Herschels of Hanover (/isis/citation/CBB000930169/)

Article Latusseck, Arndt; (2008)
William Herschel's Fifty-two Fields of Extensive Diffuse Nebulosity: A Revision (/isis/citation/CBB001034784/)

Book Clifford J. Cunningham; (2018)
The Scientific Legacy of William Herschel (/isis/citation/CBB811965846/)

Chapter Bok, Bart J.; (1974)
Harlow Shapley and the discovery of the center of our galaxy (/isis/citation/CBB000019834/)

Chapter Wolfschmidt, Gudrun; (1994)
Die Grosse Debatte: “Big Galaxy” oder “Island Universe”? (/isis/citation/CBB000073052/)

Article Mende, Erich; (1976)
Schellings Hypothese eines organischen Ursprunges des Weltsystems und die Beobachtungen der Spiralnebel durch Edwin P. Hubble (/isis/citation/CBB000028112/)