@book { DerurheberrechtlicheOriginalbegriffderbildendenKunst,
    title = "Der urheberrechtliche Originalbegriff der bildenden Kunst",
    author = " {Wolfram Hamann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1072409"
}