@article{ref1,
title="Children's school grade affects their road crossing behavior",
journal="Japanese journal of traffic psychology",
year="2017",
author="Ohtqni, Akira and Hashimoto, Hiroshi and Okada, Kazumi and Kobayashi, Takashi and Okano, Reiko",
volume="33",
number="1",
pages="1-12",
abstract="<p>[Abstract unavailable]  Keywords: SR2S</p> <p>Language: ja</p>",
language="ja",
issn="0910-9749",
doi="",
url="http://dx.doi.org/"
}