@article{Piotrowski_2007, title={Nordeuropa und die Ostblockstaaten (ca. 1965-1990)}, volume={3}, url={https://pressto.amu.edu.pl/index.php/fsp/article/view/10884}, journal={Folia Scandinavica Posnaniensia}, author={Piotrowski, Bernard}, year={2007}, month={Dec.}, pages={9–22} }