@book { PreventingANewColdWarWhyRealpolitikstillmatters, title = "Preventing A New Cold War - Why Realpolitik still matters", subtitle = "Why the relations between Russia and Western countries are tense, who is responsible for the Ukraine crisis and how the crisis could be solved", author = "Nadine {O'Shea}", year = "2017", publisher = "Anchor Academic Publishing", address = "Hamburg, Germany", url = "https://m.anchor-publishing.com/document/373129" }