Book Peter Roquette (2018)
The Riemann Hypothesis in Characteristic p in Historical Perspective. (/isis/citation/CBB919486061/) unapi

Book Artin, Emil; Hasse, Helmut; Frei, Günther (2008)
Emil Artin und Helmut Hasse: Die Korrespondenz 1923--1934. (/isis/citation/CBB001022139/) unapi

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

Article Fenster, Della D.; Schwermer, Joachim (2007)
Beyond Class Field Theory: Helmut Hasse's Arithmetic in the Theory of Algebras in Early 1931. Archive for History of Exact Sciences (p. 425). (/isis/citation/CBB000720348/) unapi

Article Fenster, Della D.; Schwermer, Joachim (2005)
A Delicate Collaboration: Adrian Albert and Helmut Hasse and the Principal Theorem in Division Algebras in the Early 1930's. Archive for History of Exact Sciences (p. 349). (/isis/citation/CBB000740267/) unapi

Article Roquette, Peter (1998)
Zur Geschichte der Zahlentheorie in den dreissiger Jahren: Die Entstehung der Riemannschen Vermutung für Kurven, und ihres Beweises im elliptischen Fall. Mathematische Semesterberichte (pp. 1-38). (/isis/citation/CBB000076967/) unapi

Article Segal, S. L. (1980)
Helmut Hasse in 1934. Historia Mathematica (pp. 46-56). (/isis/citation/CBB000004503/) unapi