Questionnaire (method.) ; Sprachgeographie (lex.) ; Linguistic geography (lex.) ; Wortatlas; Word atlas; Word geography ; Language change ; Dialektmischung; Dialect mixing; Dialect formation; Dialect leveling; Dialect loss ; Lemmata ; Switzerland (German language in) ; Schweiz (dt. Sprache in der) ; Deutsch in der Schweiz; German in Switzerland; Swiss German