DAS GASMAGAZIN 1/2020
Horizonte 1/2020
Wind Energy 2020 Yearbook
neue energie 6/2020
die tageszeitung, May 25, 2020
German Wind Energy Association Annual Report
BILD DER WISSENSCHAFT 5/2020
neue energie 4/2020
GREENPEACE study “Corona Crisis and a Green Marshall Plan” March 2020
NATURFREUNDIN 1-2020
