WURPTS, Klaus; KIRCHGEORG, Manfred. Cluster Promotion with the “Joint Task Program”: An Evaluation of the Concept and its Implementation in Eastern Germany. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 71, n. 5, p. 427–436, 2013. DOI: 10.1007/s13147-013-0249-4. Disponível em: https://rur.oekom.de/index.php/rur/article/view/674.. Acesso em: 18 mar. 2025.