1. article by et also;Zähner;Review Microbiologia Arch Biochem Biophys,1962
2. Unpublished data;Stoll;Helv Chim Acta,1951
3. should like to thank Dr for translating the German manu script References th and earlier papers of this series;Finally;Communication Helv Chim Acta,1962
4. andj Unpublished data;Emery;Am Chem Soc,1961