Restle, C. S. The Acquisition of the Wildhagen, Bitter, and Paur Collections by Alfred Berner for the Berlin Musikinstrumenten-Museum Between 1957 and 1962: Questions of Provenance. In Private Passion – Public Challenge: Musikinstrumente sammeln in Geschichte und Gegenwart; Roth, D. von, Escherich, L., Hrsg.; arthistoricum.net: Heidelberg, 2018; S. 187-194. https://doi.org/10.11588/arthistoricum.402.c5263.