Materials should be clearly structured with explicit numbering, contain a detailed didactic overview indicating at least the intended target group and target level (according to the Common European Framework of Reference for Languages) as well as the name of their authors and contact details. If external texts und pictures are used their origin has to be indicated and copyright issues must be solved.

Only language materials for specific purposes in the approved target languages will be published but no general language material. Moreover, the authors should guarantee that the texts, pictures, audio and video files used do not infringe upon the copyrights of other authors bzw. that all copyrights issues have been resolved.

Please contact the author of these materials and the administrator responsible for the respective target language indicating exactly where copyrights are doubtful.

Please contact the author of these materials directly and ask him to correct this error.

Please contact the site admin at admin@idial4p-center.org in German or English or contact the admin of the corresponding target language.

Materials, in general, must not be altered and cannot be changed digitally (pdf format), especially author's references have to be maintained. Please contact the authors if you want to change the orginal text files.

Yes, they are. But you may not ask for money from learners either (with the exception of copy costs).

You may use and copy downloaded materials for teaching and learning at will if you keep all the references to the authors but you must not publish them in part or as a whole elsewhere without the authors' permission.

With moderators and authors, you may communicate in the respective target languages; with administrators and project managers, however, only English and German may be used.