1. B. Streit, Lexikon Ökotoxikologie, 2nd ed., VCH, Weinheim, 1994, pp. 611–613.
2. M.W. Holdgate, Umwelt-Weltweit-Bericht des Umweltprogramms der Vereinten Nationen (UNEP) 1972–1982, Schmidt Verlag, Berlin, 1983, pp. 296–299.
3. J.E. Casida, G.B. Quistad, Pyrethrum Flowers–Production, Chemistry, Technology and Uses, Oxford University Press, Oxford, New York, 1995, pp. 15–23.