Bär, F. P. (2018). Private Passion - Public Challenge: An Introduction. In D. von Roth & L. Escherich (Eds.), Private Passion – Public Challenge: Musikinstrumente sammeln in Geschichte und Gegenwart (pp. 22-28). arthistoricum.net-ART-Books. https://doi.org/10.11588/arthistoricum.402.c5241