@misc{neidhart_aspects_of_2001, author={Neidhart, B.}, title={Aspects of the Threshold Limit Concept}, year={2001}, howpublished = {book part}, note = {Neidhart, B.: Aspects of the Threshold Limit Concept. In: Ebdon, L.; Pitts, L.; Cornelis, R.; Crews, H.; Donard, O.; Quevauviller, P. (Ed.): Trace Element Speciation for Environment, Food and Health - Chapter 4. Cambridge: The Royal Society of Chemistry. 2001. 81-92.}}