1. Kirk-Othmer Encyclopedia of Chemical Technology, 4th ed.; Kroschwitz, J., Howe-Grant, M., Eds.; John Wiley and Sons: New York, 1991; Vol. 9, pp 730−753.
2. Ullmann's Encyclopedia of Industrial Chemistry, 5th ed.; Elvers, B., Hawkins, S., Ravenscroft, M., Eds.; VCH: New York, 1991; Vol. A13, pp 443−464.
3. Mntrimethyltriazacyclononane/ascorbic acid: a remarkably efficient catalyst for the epoxidation of olefins and the oxidation of alcohols with hydrogen peroxide
4. Ullmann's Encyclopedia of Industrial Chemistry, 5th ed.; Elvers, B., Hawkins, S., Schultz, G., Eds.; VCH: New York, 1991; Vol. A19, pp 199−228.