Classification Scheme of the Special Subject Collection → Regions, Countries and Peoples → Particular Regions → Iran, Afghanistan, Tajikistan and other Iranian Peoples of the Region → Iran → Religion

• Frohe Botschaften : Worte des Paradieses. Tablett Tarasat. Tablett Taschalliat. Tablett Ischrakat Bahāʾallāh Stuttgart : Dt. Bahai-Bund, 1921

• Mani und der Manichäismus Widengren, Geo Stuttgart : Kohlhammer, 1961