1. D. Deans, Chromatographia1, 18 (1968).
2. G. Schomburg, F. Weeke, In:Perry/Adlard, Eds. Gas Chromatography 1972, p. 285–294 (1973). Institute of Petroleum, London.
3. G. Schomburg, H. Husmann, F. Weeke, J. Chromatogr.112, 205 (1975).
4. F. Müller, M. Oreans, Siemens Application Note No. 282.
5. G. Schomburg, E. Hübinger, H. Husmann, F. Weeke, to be published in Chromatographia.