EGIDY, B. von. Die Sammlung Cäsar Hirsch. AKMB-news: Informationen zu Kunst, Museum und Bibliothek, [S. l.], v. 9, n. 3, p. 9–11, 2009. DOI: 10.11588/akmb.2003.3.229. Disponível em: https://journals.ub.uni-heidelberg.de/index.php/akmb-news/article/view/229. Acesso em: 21 mai. 2024.