@article{RozmusDoro18, author = {Rozmus, Dorota}, title = {Stability of Grouping the EU Countries in Terms of Sustainable Development Levels}, year = {2018}, journal = {Archives of Data Science, Series A (Online First)}, volume = {4}, number = {1}, pages = {1-9}, doi = {10.5445/KSP/1000085951/19} }