<https://www.taxheaven.gr/circulars/6612/pol-1123-25-10-2007>
<http://schema.org/isBasedOn>
<https://www.taxheaven.gr/circulars/21839/s-l-o-t-ario-prwt-2219pe-ex-18-5-2015>
<https://www.taxheaven.gr/circulars/6612/pol-1123-25-10-2007>