Haid, Jonathan External, Max Planck Institute for the History of Science, Max Planck Society;
https://film-history.org/issues/text/raw-materials-celluloid-film (Any fulltext)
RFH_05_3_Haid_The-Raw-Materials_.pdf (Any fulltext), 12MB
Haid, J. (2023). The Raw Materials of Celluloid Film: Wartime Economy, Educational Animation, and Film’s Plasticity. Research in Film and History, (5). doi:10.25969/mediarep/22725.