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There is a short report regarding the planned 3rd administrative procedural rules reform Act (3. VwVfÄndG) on the site of Beck publishers with links to further materials.
The 3rd administrative procedural rules reform Act is supposed to, amongst other things, regulate the introduction of electronic administrative acts. There is an article about this in the online magazine "JurPC" - "The electronic administrative act - a new type of documentation in the administrative proceedings Act" by Volker Ibisch (http://www.jurpc.de/aufsatz/20010210.htm).