@book { PilgerwegeinsHeiligeLand,
    title = "Pilgerwege ins «Heilige Land»",
    author = "Ulrich {Fellmeth} and Ulrich {Mell}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108932"
}