Heckmann, FriedrichFriedrichHeckmann2019-09-192015-07-131997https://fis.uni-bamberg.de/handle/uniba/38222deuNation und Integration von Migranten in Deutschlandworkingpaperhttps://web.archive.org/web/20040521052101/http://www.uni-bamberg.de/~ba6ef3/pdf/efms_p13.pdf