@book { EntGrenzen,
    title = "Ent-Grenzen- За пределами",
    author = "Lyubov {Bugaeva} and Eva {Hausbacher}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101215"
}