1. Gewasbeschermingsgids, 11e druk, CAD Gewasbescherming/Plantenziektenkundige Dienst, 1989, Wageningen, Nederland.
2. R. Engst, Pure Appl. Chem.49, 675 (1977).
3. W.R. Bontoyan, D.J. Looker, T.E. Kaiser, P. Giang, B.M. Olive, J. Assoc. Off. Anal. Chem.55, 923 (1972).
4. Ch. Lentza-Rizos, in:G.W. Ware (ed.), Reviews of Environmental Contamination and Toxicology, Vol. 115, Springer-Verlag, New York, 1990, p. 4.
5. J.H. Onley, L. Giuffrida, N.F. Ives, R.R. Watts, R.W. Storherr, J. Assoc. Off. Anal. Chem.60, 1105 (1977).