@book { NetworkingacrossBordersandFrontiers,
    title = "Networking across Borders and Frontiers",
    author = "Jürgen {Barkhoff} and Helmut {Eberhart}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107004"
}