1. R. L. Tranter,Anal. Proc. 1990,27, 299.
2. F. Erni, W. Steuer, H. Bosshardt,Chromatographia 1987,24, 201.
3. C. J. Barnes (ed.),Importance of Laboratory Validations and Accurate Descriptions of Analytical Procedures for Drug Residues in Foods, Plenum, New York, 1992, pp. 1?4.
4. The U. S. Pharmacopeial Convention Inc.,The United States Pharmacopoeia XXII and National Formulatory XVII, Vol. XXII, Rockville, 1990.
5. CPMP Working Party on Quality of Medicinal Products ?Analytical Validation?, Commission of the European Communities, 1989.