Cziomer, Erhard. “Selected Consequences of the Increased International Role of Germany for the Cooperation With Russia and Poland During the Era of Globalization and Crises of the Eur Opean Union in the 21st Century”. Rocznik Integracji Europejskiej, no. 10, Dec. 2016, pp. 81-100, doi:10.14746/rie.2016.10.6.