@book { LowcosthousingWhydoweneedlowcosthousesandhowaretheybuilt,
    title = "Low cost housing. Why do we need low cost houses, and how are they built?",
    author = "",
    year = "2022",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/1290171"
}