Gesteine und Tektonik im Ostabschnitt der nordalpinen Grauwackenzone vom Alpen-Ostrand bis zum Aflenzer Becken.
1952. Mitt. Geol. Ges. Wien 42-43; pp. 1-234, 10 fig. 4 fold. plts. w. sections In complete issue, orig. wrps. libr. stamp on front cover, contents uncut.
1928. Diss. Univ. Leiden, (reprint Leids. Geol. Meded.); pp. 251-324 text in Dutch with French summary pp. 315-321, 5 fig. 2 plts. h.t. with phot. 1 fold. & col. map 1:25.000. Orig. wrps. very good, sm4to.