@book { MittelalterlicheSpracheundLiteraturinEisenachundErfurt,
    title = "Mittelalterliche Sprache und Literatur in Eisenach und Erfurt",
    author = "Martin {Schubert} and Jürgen {Wolf} and Annegret {Haase}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1102970"
}