The Biosynthesis of Isoleucine and Valine in Neurospora Crassa Wagner, R. P. ; Radhakrishnan, A. N. ; Snell, E. E. Abstract Publication: Proceedings of the National Academy of Science Pub Date: October 1958 DOI: 10.1073/pnas.44.10.1047 Bibcode: 1958PNAS...44.1047W