title: Obituary for Olaf Breidbach.
authors.affiliation: MPI Mathematics in the Sciences, Inselstraße 22, 04103, Leipzig, Germany, jjost@mis.mpg.de.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Jost
mesh_terms: D001690:Biological Science Disciplines / Q000266:history*; D005858:Germany; D049673:History, 20th Century; D049674:History, 21st Century; D010506:Periodicals as Topic / Q000266:history*; D010686:Philosophy, Medical / Q000266:history*; D011643:Publishing / Q000266:history*