By donation - by trade - by purchase: how works from the Prinzhorn Collection made their way into the Dammann Collection - Röske, Thomas (Schriften von Thomas Röske., 2016)
Aus: Jagfeld, Monika ; Dammann, Gerhard (Hrsgg.): Wahnsinn sammeln : Outsider Art aus der Sammlung Dammann, Band II. Goch 2013, pp. 57-63