TY - CPAPER AU - Mircea-Iosif Rus TI - STATISTICAL ANALYSIS OF THE RESEARCH AND DEVELOPMENT ACTIVITY OF THE CONSTRUCTION MATERIALS INDUSTRY IN EUROPE T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Ecology, Economics, Education and Legislation PY - 2018 SP - 759 EP - 766 DO - 10.5593/sgem2018/5.3/s28.097 PB - STEF92 Technology ER -