2015 Phonological change in real time. In Patrick Honeybone & Joseph Salmons (eds.), The Oxford handbook of historical phonology, 603–618. Oxford: Oxford University Press. doi: 10.1093/oxfordhb/9780199232819.013.004
2013 Longitudinal studies. In Robert Bayley , Richard Cameron & Ceil Lucas (eds.), The Oxford handbook of sociolinguistics, 261–279. Oxford: Oxford University Press. doi: 10.1093/oxfordhb/9780199744084.013.0013