Three Inventors-Scenes from Early German Computing History. - Ralf Bülow (IEEE Ann. Hist. Comput., 1990)

How Percy Ludgate's 1909 Paper (and IBM) Helped Thwart Konrad Zuse's Computer Patent in 1960. - Brian A. Coghlan; Brian Randell; Ralf Buelow (IEEE Ann. Hist. Comput., 2024)