History of linguistics (20th century) ; State of the art ; Sampling; Language corpus; Sprachkorpus; Datensammlung; Data collection; Textkorpus (method.) ; Text corpus (method.) ; Corpus linguistics ; HPSG ; Space grammar; Cognitive grammar ; Lexical constructional model; Construction grammar ; Grammatical theory; Theory of grammar ; Usage-based grammar; Functional discourse grammar; Exemplar-based grammar; Functional grammar ; Category (theory of grammar) ; Image schema ; Formalization (method.) ; Techniques (in research) ; Research techniques ; Abstraction (method.) ; Generalization (method.) ; Pattern grammar; Valenzlexikon; Valency dictionary