@book {9783800738274, 
	title = "Der Weg zum Nullenergiehaus",
	author = "Haas, Karl-Heinz",
	isbn = "9783800738274",
	year = "2013",
	edition = "2",
	keywords = "Bauherrenmodell, Energiekosten, Energiesparendes Bauen, Niedrigenergiehaus, Nullenergiehaus, Passivhaus, Plusenergiehaus",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783800738274",
	url = "https://content-select.com/de/portal/media/view/5720a78b-3f20-4970-b1c7-49e0b0dd2d03",
	publisher = "VDE Verlag",
	language = "ger",
}