%0 Journal Article %T SAFETY ASSESSMENT OF RUSSIA, USA, GERMANY AND UKRAINE %A SHUMOV, V.V. %A KOCHNEV, I.P. %K national security, mathematical model, the function of preserving the function of sovereignty, Russia’s security, the security of the United States, Germany’s security, the security of Ukraine %J National Security and Strategic Planning %D 2015 %N 2015 %P 11 %I Strategy of the Future