1. aChakraborty, D. P.InThe Alkaloids;Cordell, G. A., Ed.Academic Press:New York, 1993; Vol.44, p257.
2. Synthesis of Carbazole Alkaloids
3. dKnölker, H.J.InAdvances in Nitrogen Heterocycles;Moody, C. J., Ed.JAI Press:Greenwich, CT, 1995; Vol.1, p173.
4. eKnölker, H.J.InTransition Metals for Organic Synthesis;Beller, M.; Bolm, C., Eds.Wiley-VCH:Weinheim, 1998; Vol.1, Chapter 3.13, p534.