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+====== TTP97-11 Mass Corrections to the Vector Current Correlator ======
+   <hidden TTP97-11  Mass Corrections to the Vector Current Correlator > Three-loop QCD corrections to the vector current correlator
+ are considered.  The large momentum procedure is applied in order to
+ evaluate mass corrections up to order $(m^2/q^2)^6$.  The inclusion of
+ the first seven terms to the ratio
+ $R=\sigma(e^+e^-\to\mbox{hadrons})/\sigma(e^+e^-\to\mu^+\mu^-)$ leads
+ to reliable predictions from the high energy region down to relatively
+ close to threshold.
+ </hidden>
+|**K.G. Chetyrkin, R. Harlander, J.H. Kuehn, M. Steinhauser**  |
+|** Nucl. Phys. B 503 339-353 1997  **  |
+| {{preprints:1997:ttp97-11.pdf|PDF}} {{preprints:1997:ttp97-11.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/9704222|arXiv]]   |
+| |