<?xml version="1.0"?>
<dblp>
<article key="journals/eor/NieBDL09" mdate="2009-01-16">
<author>Xiaofeng Nie</author>
<author>Rajan Batta</author>
<author>Colin G. Drury</author>
<author>Li Lin</author>
<title>Passenger grouping with risk levels in an airport security system.</title>
<pages>574-584</pages>
<year>2009</year>
<volume>194</volume>
<journal>European Journal of Operational Research</journal>
<number>2</number>
<ee>http://dx.doi.org/10.1016/j.ejor.2007.12.027</ee>
<url>db/journals/eor/eor194.html#NieBDL09</url>
</article>
</dblp>
