Chapter Bölling, Reinhard; (1997)
Kummer vor der Erfindung der “idealen complexen Zahlen”: Das Jahr 1844 (/isis/citation/CBB000078499/)

Article Soublin, Jean-Pierre; (1984)
Préhistoire des idéaux (/isis/citation/CBB000051964/)

Chapter Jacqueline Boniface; (2016)
Kummer's Generalization of Arithmetical Properties as Applied to Certain Complex Numbers (/isis/citation/CBB798391827/)

Book Reichardt, Hans; (1988)
Nachrufe auf Berliner Mathematiker des 19. Jahrhunderts: C.G.J. Jacobi, P.G.L. Dirichlet, E.E. Kummer, L. Kronecker, K. Weierstrass. Mit Fotos, Dokumenten und Archivalien (/isis/citation/CBB000033879/)

Chapter Neumann, Olaf; (1981)
Über die Anstösse zu Kummers Schöpfung der “idealen complexen Zahlen” (/isis/citation/CBB000009648/)

Article Bölling, Reinhard; (2005)
Ein aufgefundener früher Brief Kummers am Beginn seiner Korrespondenz mit Jacobi (/isis/citation/CBB000671393/)

Article Dauben, Joseph W.; (1971 (pub. 1974))
Georg Cantor's philosophy of mathematics: The irrational and transfinite numbers (/isis/citation/CBB000011596/)

Article Eric Vandendriessche; (2022)
The concrete numbers of “primitive” societies: A historiographical approach (/isis/citation/CBB201980517/)

Article Amanda Paxton; (2021)
The Hard Math of Beauty: Gerard Manley Hopkins and "Spectral Numbers" (/isis/citation/CBB150662150/)

Book Paolo D'Isanto; (2020)
La funzione zeta di Riemann in fisica (/isis/citation/CBB753434330/)

Chapter Edwards, Harold M.; (1987)
Dedekind's invention of ideals (/isis/citation/CBB000042678/)

Book Richard Dedekind; Heinrich Weber; (2019)
Theorie Des Fonctions Algebriques d'Une Variable (/isis/citation/CBB160173996/)

Article Albis-González, Victor S.; Soriano-Lleras, Luis I.; (1976)
The work of Indalecio Liévano on the foundations of real numbers (/isis/citation/CBB000022391/)

Article Nový, Luboš; (1981)
On Kulik's tables of divisors (/isis/citation/CBB000022315/)

Article Spalt, Detlef D.; (1991)
Bolzanos Lehre von den messbaren Zahlen, 1830-1989 (/isis/citation/CBB000056578/)

Article Sampson, J.H.; (1990)
Sophie Germain and the theory of numbers (/isis/citation/CBB000062486/)

Chapter Frei, Günther; (1989)
Heinrich Weber and the emergence of class field theory (/isis/citation/CBB000062900/)

Article Kiss, Elemér; (1999)
Notes on János Bolyai's researches in number theory (/isis/citation/CBB000082268/)

Book Gray, Jeremy; Parshall, Karen Hunger; (2007)
Episodes in the History of Modern Algebra (1800--1950) (/isis/citation/CBB000774194/)

Article Boniface, Jacqueline; Schappacher, Norbert; (2001)
“Sur le concept de nombre en mathématique”: Cours inédit de Leopold Kronecker à Berlin (1891) (/isis/citation/CBB000770907/)