@book { EthikundBildungEthiqueetformation,
    title = "Ethik und Bildung- Ethique et formation",
    author = "Anton {Hügli} and Urs {Thurnherr}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100876"
}