title: Serge Alexander Korff (1906-1989).
authors.affiliation: Department of Astronomy and Astrophysics, University of Pennsylvania, Philadelphia 19104-6394.
authors.forename: B S
authors.initials: BS
authors.lastname: Shen
mesh_terms: D001256:Astronomy / Q000266:history; D003359:Cosmic Radiation; D049673:History, 20th Century; D006801:Humans; D010825:Physics / Q000266:history