1. S. S. Dighe and A. B. Kulkarni, Indian J. Chem. 11, 404 (1973)
2. S. S. Dighe and A. B. Kulkarni, Indian J. Chem. 12, 413, 414 (1974)
3. S. S. Dighe and A. B. Kulkarni, Indian J. Chem. 15B, 546, 550 (1977).
4. T. Endo et al, Chem. Pharm. Bull. 27, 2807 (1979).
5. O. A. Tucker and Sharon S. Tucker, Catnip and the catnip response, Econ. Bot. 42, 214–231 (1988).