1. See for reviews: a. G. Schmidt-Kastner and P. Egerer, in H.J. Rehra and G. Reed (Eds). Biotechnology Vol 6a, Verlag Chemie, Florida-Basel, p. 387–421 (1984) b. E.M. Meijer, W.H.J. Boesten, H.E. Schoemaker and J.A.M. van Balken. Symposium Biocatalysts in organic syntheses, Noordwijkerhout, The Netherlands, Elsevler Science Publishers, in press (1985)
2. W.H.J. Boesten (DSM/Stamicarbon) British Patent, 1,548,032 (1976)
3. W.H.J. Boesten (DSM/Stamicarbon) U.S. Patent, 3, 971, 700 (1976)
4. W.H.J. Boesten and L.R.M. Meijer-Hoffman-(NOVO-DSM), U.S. Patent, 4, 080, 259 (1978)
5. W.H.J. Boesten (DSM/Stamicarbon) U.S. Patent, 4, 172, 846 (1979)