@book { DieInterpretationderRundfunkfreiheitdesGrundgesetzes,
    title = "Die Interpretation der Rundfunkfreiheit des Grundgesetzes",
    author = "Heinrich {Engelke}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13943",
    url = "https://www.peterlang.com/document/1068495"
}