TY - CPAPER AU - Norbert Hartl TI - CONTRACTING - A COOPERATION MODEL AND SERVICE CONCEPT FOR IMPLEMENTATION OF ENVIRONMENTALLY COMPATIBLE AND RATIONAL ENERGY SAVING MEASURES AND TECHNOLOGIES T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on INFORMATICS, GEOINFORMATICS AND REMOTE SENSING PY - 2013 DO - 10.5593/sgem2013/bb2.v2/s09.012 PB - Stef92 Technology ER -