Hendriksen, Coenraad F. M. 1994. “Replacement of the Toxin Neutralisation Test in Mice by in Vitro Serological Assay Systems for Potency Testing of Tetanus Toxoid Vaccines for Veterinary Use: Results of a European Collaborative Study”. ALTEX - Alternatives to Animal Experimentation 11 (Supp. 1):30-34. https://www.altex.org/index.php/altex/article/view/2039.