* "Evaluation of occurrence of PCDD/PCDF and POPs in wastes and their potential to enter the food chain", Universität Bayreuth, afdeling van prof. Hutzinger, september 2000.
* « Evaluation of occurrence of PCDD/PCDF and POPs in wastes and their potential to enter the food chain », Université de Bayreuth, service du Pr. Hutzinger, septembre 2000