(1988) Variation across Speech and Writing. Cambridge, UK: Cambridge University Press.
Biber, D., Reppen, S., & Frignal, E.
(2010) Research in corpus linguistics. In R. Kaplan (Ed.), The Oxford Handbook of Applied Linguistics (2nd ed., pp. 548–570). Oxford, UK: Oxford University Press.
Taylor, C.
(2013) Searching for similarity using corpus-assisted discourse studies. Corpora, 8(1), 81–113.
Widdowson, H.
(2000) On the limitations of linguistics applied. Applied Linguistics, 21(1), 3–25.