@book { DieEntstehungderdeutschenParteiennachdemCleavageModell,
    title = "Die Entstehung der deutschen Parteien nach dem Cleavage-Modell",
    author = "Martin {Lau}",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640566068",
    url = "https://www.hausarbeiten.de/document/146148"
}