<https://www.haufe.de/haufe-editorial-code-of-conduct_24_537298.html>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.haufe.de/finance/haufe-finance-office-premium/bfh-urteil-vom-14071976-ii-r-5173_idesk_PI20354_HI71947.html>