1. If you say -thee uh- you're describing something hard: The on-line attribution of disfluency during reference comprehension;Arnold;Journal of Experimental Psychology: Learning, Memory, and Cognition,2007
2. Mixed-effects modeling with crossed random effects for subjects and items;Baayen;Journal of Memory and Language,2008
3. Random effects structure for testing interactions in linear mixed-effects models;Barr;Frontiers in Psychology,2013
4. Random effects structure for confirmatory hypothesis testing: Keep it maximal;Barr;Journal of Memory and Language,2013
5. Bates , D. Maechler , M. Bolker , B. 2012 lme4: Linear mixed-effects models using S4 classes http://CRAN.R-project.org/package=lme4