P. Goutain, “Quirky Optics: L’Optique moderne, an artists’ book by Daniel Spoerri and François Dufrêne”, in Daniel Spoerri : Topographies: Networks of Exchange, J. Carrick and D. Laks, Eds. Heidelberg: arthistoricum.net-ART-Books, 2022, pp. 54–70. doi: 10.11588/arthistoricum.826.c12563.