Columbia subject headings:
Harvard subject headings:
Cognitive grammar.
Education, Bilingual
English language--Study and teaching--Germany--Foreign speakers.
Language and languages--Study and teaching--Foreign speakers.
Lexicology--Psychological aspects
Psycholinguistics.
Vocabulary--Study and teaching--Foreign speakers.
Princeton subject headings:
Lexicology--Psychological aspects.
Second language acquisition.
Vocabulary--Study and teaching (Elementary)