@book { PolyvalenzundMultifunktionalittderEmblematikMultivalenceandMultifunctionalityoftheEmblem,
    title = "Polyvalenz und Multifunktionalität der Emblematik - Multivalence and Multifunctionality of the Emblem",
    author = "Wolfgang {Harms} and Dietmar {Peil}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093066"
}