@book { LebenimSchwarmWiedasInternetunsverndert,
    title = "Leben im Schwarm – Wie das Internet uns verändert",
    author = "Rolf {Schwartmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107727"
}