HESS, Daniel. Vorwort. In: TIEDTKE, Sabine (ed.). Meisterwerke aus Glas. Heidelberg: arthistoricum.net-ART-Books,2023. p. 8–9. DOI: 10.11588/arthistoricum.1248.c17592. Disponível em: https://books.ub.uni-heidelberg.de/arthistoricum/catalog/book/1248/chapter/17592.. Acesso em: 17 aug. 2024.