[1.. Wichmann, H. J.: lnd. Eng. Chem. 1.0 (1.91.8) 536.]Search in Google Scholar
[2. Wichmann, H. J.: Ind. Eng. Chem. 1.0 (1.91.8) 537· ]Search in Google Scholar
[3. Hess, W. H'., und Prescot, A. B.: J. Am. Chem. Soc. 21. (1.899) 256. 10.1021/ja02053a007]Search in Google Scholar
[4. Leach-Winton: Food Inspection and Analysis, Verlag Wiley, New York 1.920. ]Search in Google Scholar
[5. Bergner, K. G., und Sperlich, H.: Deutsche Lebensmittel- Rundschau 47 (1.951.) 1.34.]Search in Google Scholar
[6. Changes in methods: Journal of AOAC 47 (1964) 1.82.]Search in Google Scholar
[7. Official methods ofanalyses, tenth edition ( 1.96 5) 287. ]Search in Google Scholar
[- 8. Official methods of analyses, tenth edition (1.965) 287. ]Search in Google Scholar
[9. Viart, P.: 1.0. Tabak-Kolloquium, Wien 1.968.]Search in Google Scholar
[10. Nesemann, E., und Seehofer, F.: Private Mitteilung 1.964. ]Search in Google Scholar
[11. Nesemann, E., und Seehofer, F.: Private Mitteilung 1.967.]Search in Google Scholar
[12. Nesemann, E., und Seehofer, F.: 5th International Tobacco Scientific Congress, CORESTA, Harnburg 1.970.]Search in Google Scholar