title: [Developments of ultracentrifugal methods, a half century since Svedberg's first ultracentrifugation (author's transl)].
mesh_terms: D056246:Chemistry, Analytic / Q000266:history; D049673:History, 20th Century; D008970:Molecular Weight; D011506:Proteins / Q000032:analysis; D013053:Spectrophotometry; D014461:Ultracentrifugation / Q000295:instrumentation / Q000379:methods
chemical_list: D011506:Proteins