Zechmeister, T., Farnleitner, A.H., Rocke, T.E., Pittner, F., Rosengarten, R., Mach, R.L., Herzig, A. and Kirschner, A.K.T. 2002. [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, Supp. 1 (Jan. 2002), 49–54.