@article{ref1,
title="Developmental patterns of visuospatial judgment",
journal="Journal of pediatric psychology",
year="1980",
author="Lindgren, S. D. and Benton, A. L.",
volume="5",
number="2",
pages="217-225",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0146-8693",
doi="",
url="http://dx.doi.org/"
}