Hartung, Thomas, and Albrecht Wendel. “[Is Replacement of Animal Experimentation in Pharmacology a Goal or a Social Constraint, Utopia or reality?] [Article in German]”. ALTEX - Alternatives to animal experimentation 15, no. 4 (November 1, 1998): 213–215. Accessed February 24, 2024. https://www.altex.org/index.php/altex/article/view/1547.