Björck, Åke; Eldén, Lars Obituary: Axel Ruhe (1942–2015). (English) Zbl 1322.01033 BIT 55, No. 3, 621-623 (2015). MSC: 01A70 Biographies, obituaries, personalia, bibliographies Biographic References: Ruhe, Axel PDF BibTeX XML Cite \textit{Å. Björck} and \textit{L. Eldén}, BIT 55, No. 3, 621--623 (2015; Zbl 1322.01033) Full Text: DOI