1. ANSI-ADA-document no. 41 for Biological Evaluation of cental materials,1982
2. ISO 7405: Dentistry—Preclinical evaluation of biocompatibility of medical devices used in dentistry. Test methods for dental materials;International Organization for Standardization,1997
3. Use of cell cultures for toxicity testing of dental materials—advantages and limitations;Schmalz;J Dent,1994
4. New developments in the filter test system for cytotoxicity testing;Schmalz;J Mater Sci Mater Med,1994
5. Die Pulpaverträglichkeit eines Glasionomer- und Zinkoxidphosphat-Zementes;Schmalz;Dtsch Zahnärztl Z,1986