3.1. Method for the definition for a guarantee of existence 3.2. Restrictions for definition of guarantees of existence
4.1. Hypertext as a textformat for online information 4.2. Effects on the handling of online information 4.3. Context relation and linkage as quality indicators 4.4. Relevance and value of information 4.5. Integration of text modules 4.6. Efficent deletion methods
