Ukjent
{{cite web |url=https://marcus.uib.no/instance/reference/970d7f60c1ff2ff1a14ec1d6c7e0f72d2d697f0b |title=ubb-kk-n-401-021: Stephansen A/S gjenn... (s. Ukjent) |author=Avdeling for spesialsamlinger |accessdate=Thu Apr 18, 2024 |publisher=University of Bergen Library}}