SOSBrutalism (2022-03-04). Diagonally staggered façade and expressively protruding spikes cladded in red aluminium... this exposed concrete university building in Cologne is a true brutalism monster! (in en). facebook.com. Retrieved on 2022-03-14.archive.ph
SOSBrutalism. Werkgruppe 7 / Bauturm: Staatliche Hochschule für Musik (today: Hochschule für Musik und Tanz), 1973C–1977 (in en). sosbrutalism.org. Retrieved on 2022-03-14.web.archive.org
