| 2012-02-12 | urbanc | completed model section; vt has only state as argument | file | diff | annotate |
| 2012-02-10 | urbanc | more on paper | file | diff | annotate |
| 2012-02-01 | zhang | All comments added. | file | diff | annotate |
| 2012-01-24 | urbanc | initial version of the PIP formalisation | file | diff | annotate |