1. Aizhu, C., & Tan, F. (2018). China’s Sinopec halves Iran oil loadings under U.S. pressure: Sources. Reuters. Accessed April 29, 2019, from
https://www.reuters.com/article/us-china-iran-oil/chinas-sinopec-halves-iran-oil-loadings-under-u-s-pressure-sources-idUSKCN1M81D1
2. Al Jazeera. (2018). EU moves to block US sanctions on Iran. Al Jazeera. Accessed April 29, 2019, from
https://www.aljazeera.com/news/2018/05/eu-moves-block-sanctions-iran-180517134848253.html
3. Bershidsky, L. (2018). The Rusal case is a failure of U.S. sanctions. Bloomberg Opinion. Accessed April 29, 2019, from
https://www.bloomberg.com/view/articles/2018-04-24/trump-s-russia-sanctions-are-a-mess
4. Bump, P. (2018). Trump’s complaint about Germany, Russia explained. Washington Post. Accessed April 29, 2019, from
https://www.washingtonpost.com/news/politics/wp/2018/07/11/trumps-complaint-about-germany-and-russia-explained/?utm_term=.5088299c7533
5. Cafruny, A., & Ryner, M. (2007). Europe at bay. In the shadow of US hegemony. London: Lynne Rienner Publishers.