1. Baranowski, M., and D. Turton. 2015. Researching Northern Englishes. In Researching Northern English [Varietes of English around the World 55], ed. R. Hickey, 293–316. Amsterdam, Philadelphia: John Benjamins.
2. Brown, G. 1977. Listening to spoken English. London: Longman.
3. Bybee, J. 2003. Phonology and language use. Cambridge: Cambridge University Press.
4. Clements, G.N. 1990. The role of the sonority cycle in core syllabification. In Papers in laboratory phonology vol. 1: Between the grammar and physics of speech, eds. J. Kingston, and M.E. Beckman, 283–333. Cambridge: Cambridge University Press.
5. Dobrogowska, K. 1992. Word initial and word final consonant clusters in Polish popular science texts and in artistic prose. Studia Phonetica Posnaniensia 3: 47–121.