@article{ref1,
title="Interspersed requests: A nonaversive procedure for reducing aggression and self-injury during instruction",
journal="Journal of applied behavior analysis",
year="1991",
author="Horner, Robert H. and Day, H. Michael and Sprague, Jeffrey R. and O'Brien, Michelle and Heathfield, Lora Tuesday",
volume="24",
number="2",
pages="265-278",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0021-8855",
doi="10.1901/jaba.1991.24-265",
url="http://dx.doi.org/10.1901/jaba.1991.24-265"
}