@book { PilgernundWallfahreninderSchule,
    title = "Pilgern und Wallfahren in der Schule",
    author = "Andreas {Gautier}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b10509",
    url = "https://www.peterlang.com/document/1050759"
}