@article{Rozmus2018,
    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},
    volume = {4},
    number = {1},
    pages = {1-9},
    doi = {10.5445/KSP/1000085951/19}
}