1. N. Van Thoai, in: N. Van Thoai, J. Roche (Eds.), Homologous Enzymes and Biochemical Evolution, Gordon and Breach, New York, 1968, pp. 199–229.
2. D.C. Watts, in: N. Van Thoai, J. Roche (Eds.), Homologous Enzymes and Biochemical Evolution, Gordon and Breach, New York, 1968, pp. 279–296.
3. D.C. Watts, in: E. Schoffeniels (Ed.), Biochemical Evolution and the Origin of Life, North-Holland, Amsterdam, 1971, pp. 150–173.
4. J.F. Morrison, in: P.C. Boyer (Ed.), The Enzymes, Academic Press, New York, 1973, pp. 457–486.