| Andersson, S. 2003. Foraging responses in the butterflies Inachis io, Aglais urticae (Nymphalidae), and Gonepteryx rhamni (Pieridae) to floral scents. Chemoecology. 13:1-11. |
| |
| Cornu, A., Carnat, A.-P., Martin, B., Coulon, J.-B., Lamaison, J.-L., Berdague, J.-L. 2001. Solid-phase microextraction of volatile components from natural grassland plants. J. Agric. Food Chem. 49:203-209. |
| |
| Shawl, A.S., Srivastava, S.K., Syamasundar, K.V., Tripathi, S., and Raina, V.K. 2002. Essential oil composition of Achillea millefolium L. growing wild in Kashmir, India. Flavour Fragr. J. 17:165-168. |
| |
