@book { TheInternationalOrderattheBeginningofthe21stCentury,
    title = "The International Order at the Beginning of the 21 st  Century",
    author = "Andrea K. {Riemer}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103004"
}