KROPP, Per; SCHWENGLER, Barbara. Delineation of Functional Labour Market Regions—A Methodological Approach. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 69, n. 1, p. 45–62, 2011. DOI: 10.1007/s13147-011-0076-4. Disponível em: https://rur.oekom.de/index.php/rur/article/view/699. Acesso em: 15 aug. 2026.