Title: Khelʹsinkskiĭ prot︠s︡ess v sovetskoĭ, rossiĭskoĭ vneshneĭ politike
Subjects: European cooperation, International Security, History, National security, Organization for Security and Co-operation in Europe, Conference on Security and Cooperation in Europe (1972 : Helsinki, Finland)
Places: Europe
Time periods: 20th century