@article{ref1,
title="People on the move",
journal="Public health",
year="1973",
author="Stewart, G. T.",
volume="87",
number="6",
pages="205-210",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-3506",
doi="",
url="http://dx.doi.org/"
}