@book { DiespanischenSpectatorsimberblick,
    title = "Die spanischen «Spectators» im Überblick",
    author = "Klaus-Dieter {Ertler} and Elisabeth {Hobisch} and Andrea Maria {Humpl}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02046-5",
    url = "https://www.peterlang.com/document/1046946"
}