@book { Empirischpraktischforschen,
    title = "Empirisch-praktisch forschen",
    author = "Werner {Früh} and Benjamin {Bigl} and Sebastian {Heinisch} and Jasper A. {Friedrich} and Markus {Schubert}",
    year = "2021",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1108801"
}