1. Padwa A (1984) Dipolar cycloaddition chemistry, vol 1–2. Wiley, New York
2. Kobayashi S, Jorgensen KA (2002) Cycloaddition reactions in organic synthesis. Wiley, Weinheim
3. Kumar KRR, Mallesha H, Rangappa KS (2003) Eur J Med Chem 38:613
4. Gothelf KV, Jorgensen KA (1998) Chem Rev 98:867
5. Tufarielo JJ (1984) In: Padwa A (ed) 1,3-Dipolar cycloaddition chemistry. Wiley, New York