We measured linguistic differences and also conducted comprehensibility test. Impe's thesis "Mutual intelligibility of national and regional varieties of Dutch in the Low Countries" (Leuven, 6/2010) was the main product of the project, but other papers were published as well, including a study of the Auer-Hinskens model of regionalization on the basis of the regional speech of announcers at regional radio stations (Nerbonne, van Ommen, Wieling and Gooskens, ca. 2013). The speech of the announcers did not fit the Auer-Hinskens model well, and suggested that the announcers were perhaps rather "performing regionally".