Frech, Timm. “Do It Yourself Stencil Instructions on Cigarette Cards”. In Stencil Stories: A Stencil History of Street Art Geschichte Des Schablonen-Graffiti, edited by Ulrich Blanché, 30–35. Universitätsmuseum Heidelberg: Kataloge 15. Heidelberg: heiBOOKS, 2022. Accessed July 17, 2024. https://books.ub.uni-heidelberg.de/heibooks/catalog/book/994/chapter/13536.