Written language ; Language statistics ; Identität und Sprache; Identity and language; Fremdheit und Sprache; Estrangement and language; Sprache und Integration; Integration und Sprache; Language and identity ; Areallinguistik; Geolinguistik; Geolinguistics; Linguistic geography ; Isogloss ; Language change ; Adstratum language; Adstratsprache; Neighbor languages ; Mundartforschung; Dialectology ; Creole continuum; Dialect continuum; Dialektkontinuum; Kontinuum (Soziolinguistik) ; Continuum (sociolinguistics) ; Soziolektales Kontinuum; Continuum (dialectology) ; German ; Low Saxon ; Märkisch; Brandenburgish ; Bavarian