Friedrich Wilhelm Strassmann (1902–1980), a collaborator at the Kaiser-Wilhelm-Institut in Berlin and professor at the University of Mainz since 1946, worked on artificial radio-nucleides and methods for geological age determinations. With Otto Hahn and Lise Meitner {see planets  (19126) and  (6999), respectively}, he received the Enrico Fermi prize in 1966. (M 42367) _ _.