Imani, Daniela, Josef Nipper, and Günter Thieme. 2014. “Linguistic and Neighbourhood Integration Among Highly-Skilled Migrants – A Quantitative Analysis Using the Example of Foreign University Staff Members in Aachen, Bonn and Cologne”. Comparative Population Studies 39 (4). Wiesbaden, Germany. https://doi.org/10.12765/CPoS-2014-09.