Links:
[1] https://docstore.entsoe.eu/_layouts/15/WopiFrame.aspx?sourcedoc=/Documents/Publications/Position%20papers%20and%20reports/Digital%20Paper%20Executive%20Summary.pdf&action=default
[2] https://docstore.entsoe.eu/_layouts/15/WopiFrame.aspx?sourcedoc=/Documents/Publications/Position%20papers%20and%20reports/digital_report_2019.pdf&action=default
[3] https://www.entsoe.eu/news/2019/11/18/cyber-meets-the-physical-grid-entso-e-s-digital-report-is-out/