@book { PhnomenologiedesZwischen,
    title = "Phänomenologie des Zwischen",
    subtitle = "Die Beziehung im Denken Martin Heideggers",
    author = "Frank {Schlegel}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107850"
}