Seeburg, Peter H. Department of Molecular Neurobiology, Max Planck Institute for Medical Research, Max Planck Society;
http://www.pnas.org/content/76/5/2153.full.pdf (Any fulltext)
https://doi.org/10.1073/pnas.76.5.2153 (Any fulltext)
Roberts, J. L., Seeburg, P. H., Shine, J., Herbert, E., Baxter, J. D., & Goodman, H. M. (1979). Corticotropin and beta-endorphin: construction and analysis of recombinant DNA complementary to mRNA for the common precursor. Proceedings of the National Academy of Sciences of the United States of America, 76(5), 2153-2157. doi:10.1073/pnas.76.5.2153.