https://biblioscout.net/article/10.33196/rpa202104023601
https://doi.org/10.33196/rpa202104023601
https://biblioscout.net/?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=rpa&rft.atitle=Auskunft+%C3%BCber+Werbeauftr%C3%A4ge&rft.volume=21&rft.issue=4&rft.spage=236&rft.epage=236&rft.issn=2218-2977&rft_id=info:doi/10.33196/rpa202104023601