Seeburg, Peter H. Department of Molecular Neurobiology, Max Planck Institute for Medical Research, Max Planck Society;
https://www.nature.com/articles/281544a0.pdf (Any fulltext)
https://doi.org/110.1038/281544a0 (Any fulltext)
Goeddel, D. V., Heyneker, H. L., Horzumi, T., Arentzen, R., Itakura, K., Yansura, D. G., et al. (1979). Direct expression in Escherichia coli of a DNA sequence coding for human growth hormone. Nature, 281(5732), 544-548. doi:10.1038/281544a0.