Philatelic Diplomacy in the System of the Global Economic Cooperation and Its Role in Realization of the Geopolitical Goals. Mediterr. J. Soc. Sci. [Internet]. 2015 Sep. 27 [cited 2024 May 5];6(5 S3):356. Available from: https://www.richtmann.org/journal/index.php/mjss/article/view/7785