<?xml version="1.0"?>
<dblp>
<article key="journals/ipl/HarperM99" mdate="2003-11-20">
<author>Robert Harper</author>
<author>John C. Mitchell</author>
<title>Parametricity and Variants of Girard's <i>J</i> Operator.</title>
<pages>1-5</pages>
<year>1999</year>
<volume>70</volume>
<journal>Inf. Process. Lett.</journal>
<number>1</number>
<url>db/journals/ipl/ipl70.html#HarperM99</url>
<ee>http://dx.doi.org/10.1016/S0020-0190(99)00036-8</ee>
</article>
</dblp>
