{{cite web |url=https://marcus.uib.no/instance/webresource/4ff9790d-f0fa-48c2-8ac3-e606c2f8c046 |title=Paraplymaker Eriksen og Keiser Wilhelm II |author=Avdeling for spesialsamlinger |accessdate=Thu Mar 28, 2024 |publisher=University of Bergen Library}}