@article{ref1,
title="Children's estimates of vehicle approach times",
journal="Human factors",
year="1980",
author="Prescott, S. and Payne, A. and Hoffmann, E. R.",
volume="22",
number="2",
pages="235-240",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}