@masterthesis{1518865,
    title = "The geopolitical value of Southeastern Europe in the classical and contemporary geopolitical theories. A comparative analysis and critical review.",
    authorField = "Λεοντάρης, Νικόλαος",
    year = "2014",
    school = "Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών"
}