@book { DerRaumbegriffinderMalereiderModerne,
    title = "Der Raumbegriff in der Malerei der Moderne",
    author = "Dietmar {Mezler}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836624633",
    url = "https://m.diplom.de/document/226464"
}