Taylor E Johnson, Mark R Dixon
J Appl Behav Anal. 2009 Fall; 42(3): 735–740. doi: 10.1901/jaba.2009.42-735
Mark R Dixon, Becky L Nastally, James E Jackson, Reza Habib
J Appl Behav Anal. 2009 Winter; 42(4): 913–918. doi: 10.1901/jaba.2009.42-913
Alice Hoon, Simon Dymond, James W Jackson, Mark R Dixon
J Appl Behav Anal. 2008 Fall; 41(3): 467–470. doi: 10.1901/jaba.2008.41-467