@book { DasIntelligenteHaus,
    title = "Das «Intelligente Haus»",
    subtitle = "Entwicklung und Bedeutung für die Lebensqualität",
    author = "Winfried {Heusinger}",
    year = "2005",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099438"
}