1. Letter from Severo Ochoa to Arthur Kornberg Publication: Produced: 29 March 1949 Subject(s): EnzymesEscherichia coliAdenosine Triphosphate Archival Collection: The Arthur Kornberg Papers (Profiles in Science)
2. Letter from Julius Marmur to Arthur Kornberg Publication: Produced: 28 January 1960 Subject(s): EnzymesDNAEscherichia coli Archival Collection: The Arthur Kornberg Papers (Profiles in Science)
3. Letter from I. Robert Lehman to Julius Marmur Publication: Produced: 9 February 1960 Subject(s): EnzymesDNAEscherichia coli Archival Collection: The Arthur Kornberg Papers (Profiles in Science)