@journal {ew_2020_04, 
	title = "ew-Magazin für die Energiewirtschaft 04/2020",
	journal = "ew - Magazin für die Energiewirtschaft",
	ISSN = "1619-5795 ",
	year = "2020",
	number = "4",
	doi = "ew_2020_04",
	url = "https://content-select.com/index.php?id=bib_view&doi=ew_2020_04",
	publisher = "VDE Verlag",
	language = "",
}