1. Determination of Coumarin, 7-Hydroxy-Coumarin, 7-Hydroxycoumarin-Glucuronide, and 3-Hydroxycoumarin by High-Performance Liquid Chromatography
2. J.R. Casley-Smyth, J.R. Casley-Smyth, in: R. O'Kennedy, R.D Thornes (Eds.), Coumarins: Biology, Applications and Mode of Action, Wiley, Chichester, 1997, pp 143–184.
3. N.B. Piller, in: R. O'Kennedy, R.D Thornes (Eds.), Coumarins: Biology, Applications and Mode of Action, Wiley, Chichester, 1997, pp. 185–208.