@article{ref1,
title="Measures of impulsivity",
journal="Personality and individual differences",
year="1987",
author="Campbell, John B.",
volume="8",
number="3",
pages="451-451",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0191-8869",
doi="10.1016/0191-8869(87)90051-1",
url="http://dx.doi.org/10.1016/0191-8869(87)90051-1"
}