Peer Reviewed Journal via three different mandatory reviewing processes, since 2006, and, from September 2020, a fourth mandatory peer-editing has been added.
For distributing electronic documents the document format is a key
factor. The Portable Document Format (PDF) is very popular for
text-based documents. Currently also 3D-documents are distributed
using that format. PDF is also very often used as primary document
format for lecture notes. Unfortunately there are some problems
related to the format especially when interactivity is an issue in
such teaching and learning environments. On the one hand it is
necessary to personalize content for each user, therefore documents
must be adapted to user
