TY - CPAPER AU - Attila Korodi AU - Sandor Petres AU - Agnes Keresztesi AU - Robert Szep TI - SUSTAINABLE DEVELOPEMENT. THEORY OR PRACTICE? T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2017 17th International Multidisciplinary Scientific GeoConference PY - 2017 SP - 387 EP - 394 DO - 10.5593/sgem2017/54/s23.049 PB - STEF92 Technology ER -