OHLANDER, Sölve. "The Big Four". "Learners’ dictionaries" inför 2000-talet. LexicoNordica, [S. l.], n. 3, 1996. DOI: 10.7146/ln.v0i3.18925. Disponível em: https://tidsskrift.dk/lexn/article/view/18925. Acesso em: 6 dec. 2025.