@article{ref1,
title="A note on the interdisciplinary study in transportation research",
journal="IATSS research",
year="1981",
author="Tsukio, Y",
volume="5",
number="1",
pages="52-59",
abstract="This paper is composed of two parts.  The first part discusses the importance of the research map which gives facilities to the researcher who hopes to find out the research subjects, to recognize relationships among the subjects, and to search the possible ways of researching.  An example research map is shown.  The second part discusses the need for interdisciplinary study in this field and tries to define the meaning of interdisciplinary study to distinguish it from a multidisciplinary study.<p />",
language="",
issn="0386-1112",
doi="",
url="http://dx.doi.org/"
}