id	domain	url
cet-15055	www.cetjournal.it	www.cetjournal.it
cet-15055	www.electricitymaps.com	www.electricitymaps.com>
cet-15055	www.sandia.gov	www.sandia.gov/app/uploads/sites/163/2022/03/eshb_ch11_hydrogen_headley.pdf>
cet-15055	publications.tno.nl	https://publications.tno.nl/publication/34636875/kdhcac/vankranenburg2020-efuels.pdf>
cet-15055	wfsinc.com	https://wfsinc.com/file_library/files/wfs-wfsinc/scania-westporttechnical-paper-221201.pdf>
cet-15055	www.theengineer.co.uk	www.theengineer.co.uk/content/in-depth/late-great-engineers-geoffrey-ballard-fuel-cell-visionary/>
cet-15055	www.statista.com	www.statista.com/statistics/276629/global-co2-emissions/>
cet-15055	www.researchgate.net	www.researchgate.net/publication/296578053_bmw_v12_-_hydrogen_-_internal_combustion_engine>
cet-15055	www.windjournal.de	www.windjournal.de/erneuerbare-energie/energiespeicher-fuer-erneuerbare-energien>