<?xml version="1.0"?>
<dblp>
<article key="journals/ipl/Ben-Amram03" mdate="2003-11-25">
<author>Amir M. Ben-Amram</author>
<title>Tighter constant-factor time hierarchies.</title>
<pages>39-44</pages>
<year>2003</year>
<volume>87</volume>
<journal>Inf. Process. Lett.</journal>
<number>1</number>
<ee>http://dx.doi.org/10.1016/S0020-0190(03)00253-9</ee>
<url>db/journals/ipl/ipl87.html#Ben-Amram03</url>
</article>
</dblp>
