Univ. Dr. Dr. Adrian Tantau, Drd. Alexandra Chinie (Panazan. "GREEN CLUSTERS AS A NEW BUSINESS MODEL FOR CENTRAL AND EASTERN EUROPE." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2012 12th International Multidisciplinary Scientific GeoConference (2012): 499 - 508 pp. https://doi.org/10.5593/sgem2012/s18.v4006