@book { DiachronischePhonologiedesUrundFrhslavischen,
    title = "Diachronische Phonologie des Ur- und Frühslavischen",
    author = "Georg {Holzer}",
    year = "1999",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1087813"
}