E. John

Stoichiometry of oxygen consumption in the biosynthesis of isopenicillin from a tripeptide.

J. Baldwin, E. Abraham, R. L. White, 1982, The Biochemical journal.

Conversion of 17O/18O-labelled δ-(L-α-aminoadipyl)–L-cycteinyl–D-valine into 17O/18O-labelled isopenicillin N in a cell-free extract of C. acremonium

Robert L. White, R. Aplin, L. Field, 1982 .

Conversion of 17O/18O labelled δ-(L-α-aminoadlpyl)-L-cysteinyl-D-valine to 17O/18O labelled isopenicillin n in a cell-free extract of . A study by 17O-NMR spectroscopy and mass spectrometry

Robert L. White, R. Aplin, L. Field, 1983 .