1. Syllabification of intervocalic consonants
2. Simpson, Tony 1997, The Immigrants: The Great Migration from Britain to New Zealand, 1830–1890, Auckland: Godwit
3. Infrequent words are longer in duration than frequent words.
4. Strang, Barbara M. H. 1970, A History of English, London: Methuen
5. Simpson, Sam 1996, Dialect Contact in Telford New Town, unpublished BA project, University of Essex