Rewriting of Regular Expressions and Regular Path Queries

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\begin{bibtex} @article{DBLP:journals/jcss/CalvaneseGLV02,

 author    = {Diego Calvanese and
              Giuseppe De Giacomo and
              Maurizio Lenzerini and
              Moshe Y. Vardi},
 title     = {Rewriting of Regular Expressions and Regular Path Queries},
 journal   = {J. Comput. Syst. Sci.},
 volume    = {64},
 number    = {3},
 year      = {2002},
 pages     = {443-465},
 ee        = {http://dx.doi.org/10.1006/jcss.2001.1805},
 bibsource = {DBLP, http://dblp.uni-trier.de}

}

\end{bibtex}