ACKE, Dries. Zeroing In: Lessons from the European Climate Foundation's Roadmap 2050 Project. IEEE Power and Energy Magazine. 2014-09, roč. 12, čís. 5, s. 42–49. Dostupné online [cit. 2021-08-07]. ISSN1558-4216. doi:10.1109/MPE.2014.2331894.
ACKE, Dries. Zeroing In: Lessons from the European Climate Foundation's Roadmap 2050 Project. IEEE Power and Energy Magazine. 2014-09, roč. 12, čís. 5, s. 42–49. Dostupné online [cit. 2021-08-07]. ISSN1558-4216. doi:10.1109/MPE.2014.2331894.
web.archive.org
EFC-European Climate Foundation [online]. [cit. 2021-08-07]. Dostupné v archivu pořízeném dne 2021-07-15. (anglicky)
worldcat.org
ACKE, Dries. Zeroing In: Lessons from the European Climate Foundation's Roadmap 2050 Project. IEEE Power and Energy Magazine. 2014-09, roč. 12, čís. 5, s. 42–49. Dostupné online [cit. 2021-08-07]. ISSN1558-4216. doi:10.1109/MPE.2014.2331894.