Letter from Marshall W. Nirenberg to Francis Crick (January 15, 1962) (in The Marshall W. Nirenberg Papers)
The Dependence of Cell-Free Protein Synthesis in E. Coli Upon Naturally Occuring or Synthetic Polyribonucleotides (October 1961) (in The Marshall W. Nirenberg Papers)
Characteristics and Stabilization of DNAase-Sensitive Protein Synthesis in E. Coli Extracts (October 1961) (in The Marshall W. Nirenberg Papers)