Schniering, Anne, et al. “[Development of an IgY-Based Assay for the Detection of Ascaris-Suum-Antigens] [Article in German]”. ALTEX - Alternatives to Animal Experimentation, vol. 13, no. Supp. 1, Jan. 1996, pp. 62-65, https://www.altex.org/index.php/altex/article/view/2064.