1. R.M. Williams, 1989, Synthesis of Optically Active α-Amino Acids, Pergamon Press, Oxford.
2. Tetrahedron Symposium-in-Print, 1988, no. 33 (M.J. O’Donnell, ed.).
3. G.C. Barrett (ed.), 1985, Chemistry and Biochemistry of the Amino Acids, Chapman and Hall, London.
4. Specialist Periodical Report Amino Acids and Peptides, series editor J.S. Davies, The Royal Society of Chemistry, London.
5. D.A. Evans, T.C. Britton, R.L. Dorow, and J.F. Dellaria Jr., 1988, Tetrahedron, 44, 5525.