Critical editions of texts fulfil the task of presenting the text of a written source in a clear and readable way with the aim of representing it as completely and authentically as possible. In co-operation with the Adolf-Reichwein-Society a commented edition of the work of Adolf Reichwein is being compiled. A printed edition of his pedagogical works in five volumes is published in 2011, supplemented by a digitised version of his complete works. The guidelines of the Text Encoding Initiate (TEI) widely used by philologists are being used as markup system for the computer edition. The use of this international standard based on XML will guarantee that the electronic edition will be conserved permanently independent of specific programmes and operating systems. Based on experiences gained in this project additional editorial projects have been initiated.
