Rink, Dieter, and Manuel Wolff. “Housing Vacancy in Germany. On the Conceptualization of a Key Indicator for Housing Monitoring by Using Data from the German Housing Census (GWZ) 2011”. Raumforschung und Raumordnung | Spatial Research and Planning 73, no. 5 (October 31, 2015): 311–325. Accessed September 23, 2026. https://rur.oekom.de/index.php/rur/article/view/623.