Internal linking is a good thing, but it must not be used too extensively. Link to the articles that make sense in context of the manual, especially when they are about fundamental principles of {{UBIK}}, like for example the [[MetaClass]] article. Link to each keyword only once in an article, at first appearance of the keyword.
External links only make sense if the target article supports in comprehending an article, for example a certain standard or norm that is used by or in {{UBIK}}, i.e. [http://en.wikipedia.org/wiki/ISO_15926 ISO15926].
===Lists===