@article{ref1,
title="Urban transportation in North America, Part 4. para‐transit",
journal="Transportation planning and technology",
year="1978",
author="Hoel, Lester A.",
volume="4",
number="2",
pages="71-80",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0308-1060",
doi="10.1080/03081067808717122",
url="http://dx.doi.org/10.1080/03081067808717122"
}