prio/Paper/document/root.bib
2012-02-06 urbanc paper updatated
2012-02-04 urbanc updated
2012-02-04 urbanc slight polishing
2012-02-02 urbanc slight tuning
2012-02-01 urbanc more on intro
2012-02-01 urbanc more on intro
2012-01-29 zhang More explanations added by XY.
2012-01-24 urbanc initial version of the PIP formalisation
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