D. TUTICA, V. CENUSA, P. TUDOR, R. PATRASCU, E. MINCIUC (2018). URBAN SUSTAINABILITY THROUGH POLYGENERATION OF ENERGY. 5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018, 741-748. https://doi.org/10.5593/sgemsocial2018/5.3/S21.094