Author       = "<author>" <a = [a-z]*> "</author>" ;
Title        = "<title>"  <t = [a-z]*> "</title>" ;

NoEndArticle = (.* - (.* "</article>" .*) ) ;
Article      = "<article>"
                  ${Author}* ${Title} ${NoEndArticle}
               "</article>" ;

NoEndInProc  = (.* - (.* "</inproceedings>" .*) ) ;
Proceeding   = "<inproceedings>"
                 ${Author}* ${Title} ${NoEndInProc}
               "</inproceedings>";

DBLP         = <p = ${Proceeding} | ${Article} >* ;

/*
Example:
<article>
    <author>Noam Chomsky</author>
    <title>Three Models for the Description of Language</title>
    <year>1956</year>
    <journal>IRE Transactions on Information Theory</journal>
</article>
<inproceedings>
    <author>Claus Brabrand</author>
    <author>Jakob G Thomsen</author>
    <title>Typed and Unambiguous Pattern Matching
           on Strings using Regular Expressions.</title>
    <year>2010</year>
    <booktitle>PPDP 2010</booktitle>
</inproceedings>
*/