<http://annualreport2021.entsoe.eu/list-of-abbreviations/#schema-nav-element-87>
<http://schema.org/url>
<http://annualreport2021.entsoe.eu/annex-1-network-codes-and-clean-energy-package/>
<https://annualreport2021.entsoe.eu/list-of-abbreviations/>