Sampling; Language corpus; Sprachkorpus; Datensammlung; Data collection; Textkorpus (method.) ; Text corpus (method.) ; Corpus linguistics ; Techniques (in research) ; Research techniques ; Emic/etic (method.) ; Emisch/etisch (method.) ; Feldforschung; Field work; Field linguistics ; Sociolinguistics ; Alternation (biling.) ; Language shift (biling.) ; Sprachwechsel (biling.) ; Language variation/Dialectology ; Allophone