Leygraf, Willy. “Rezension Von: Gaiser, Gerd; Baumhauer, Hermann, Schwäbische Alb”. Schwäbische Heimat 27, no. 3 (1976): 223–224. Accessed February 5, 2026. https://journals.wlb-stuttgart.de/index.php/sh/article/view/17081.