Zechmeister, Thomas, Andreas H. Farnleitner, Tonie E. Rocke, Fritz Pittner, Renate Rosengarten, Robert L. Mach, Alois Herzig, and Alexander K. T. Kirschner. “[PCR and ELISA - in Vitro Alternatives to the Mouse-Bioassay for Assessing the Botulinum-Neurotoxin-C1 Production Potential in Environmental samples?] [Article in German]”. ALTEX - Alternatives to animal experimentation 19, no. Supp1 (January 1, 2002): 49–54. Accessed September 25, 2022. https://altex.org/index.php/altex/article/view/2126.