Heinhold, J. Oskar Perron. (German) Zbl 0652.01030 Jahresber. Dtsch. Math.-Ver. 90, No. 4, 184-199 (1988). With list of publications. MSC: 01A70 Biographies, obituaries, personalia, bibliographies 01A60 History of mathematics in the 20th century Biographic References: Perron, O. PDF BibTeX XML Cite \textit{J. Heinhold}, Jahresber. Dtsch. Math.-Ver. 90, No. 4, 184--199 (1988; Zbl 0652.01030)