Book Belkora, Leila; (2003)
Minding the Heavens: The Story of Our Discovery of the Milky Way

Article Paul, E. Robert; (1986)
J.C. Kapteyn and the early 20th-century universe

Article Klaas van Berkel; (2024)
Ferryman between two cultures: The calling of a historian of science

Article Pieter C. van der Kruit; (2023)
Pieter Johannes Van Rhijn, Kapteyn's Astronomical Laboratory and the plan of Selected Areas

Article Pieter C. van der Kruit; (2024)
Pannekoek’s Galaxy

Article Smith, Robert W.; (1983)
The great debate revisited

Article Bartolucci, Jorge; (2005)
La modernización de la ciencia en México y la Política de Buena Vecindad en el caso de la astronomía

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

Article Hoskin, M. A.; (1976)
The “great debate”: What really happened

Chapter Palmeri, JoAnn; (2009)
Bringing Cosmos to Culture: Harlow Shapley and the Uses of Cosmic Evolution

Article Zakariya, Nasser; (2012)
Making Knowledge Whole: Genres of Synthesis and Grammars of Ignorance

Article Gingerich, Owen; Welther, Barbara; (1985)
Harlow Shapley and the cepheids

Article Smith, Horace A.; (2000)
Bailey, Shapley, and Variable Stars in Globular Clusters

Chapter DeVorkin, David; (2006)
Serving the Muse in Shapley's Wake

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

Article Jones, Bessie Zaban; (1984)
To the rescue of the learned: The Asylum Fellowship Plan at Harvard, 1938-1940

Thesis Palmeri, JoAnn; (2000)
An Astronomer Beyond the Observatory: Harlow Shapley as Prophet of Science

Article Stamhuis, Ida H.; Seneta, Eugene; (2009)
Pearson's Statistics in the Netherlands and the Astronomer Kapteyn

Chapter Robert W. Smith; (2019)
Astronomy in the Time of Pannekoek and Pannekoek as an Astronomer of his Times

Book Hertzsprung-Kapteyn, Henrietta; (1993)
The life and works of J.C. Kapteyn. An annotated translation with preface and introduction by Paul, E. Robert