WAHBA, A J Synthetic polynucleotides and the amino acid code. IX. [electronic resource] - Proceedings of the National Academy of Sciences of the United States of America Jun 1963 - 880-5 p. digital Publication Type: Journal Article ISSN: 0027-8424 Standard No.: 10.1073/pnas.49.6.880 doi Subjects--Topical Terms: Amino AcidsEscherichia coliPolynucleotides