Gruber, Franz P., and Horst Spielmann. “[Replacement of the Frog Test in Physiology Teaching by the Myograph: Practical Validation in Germany] [Article in German]”. ALTEX - Alternatives to animal experimentation 13, no. 4 (November 1, 1996): 190–194. Accessed May 2, 2024. https://www.altex.org/index.php/altex/article/view/1620.