1. Ultratrace Analysis of Pharmaceuticals and Other Compounds of Interest Touchstone, J.C.;Touchstone,1986
2. Chromatography;Stahl,1975
3. Thin Layer Chromatography;Stahl,1969
4. Trace and Ultratrace Analysis by HPLC;Ahuja,1992
5. Dünnschicht-Chromatographie von Aminosäuren