Teutsch, Gotthard M. “[Man and His Fellow-Creatures under Ethical Aspects. Literary Report 2000 2001, No.24] [Article in German]”. ALTEX - Alternatives to Animal Experimentation, vol. 18, no. 4, Nov. 2001, pp. 227-59, https://www.altex.org/index.php/altex/article/view/1121.