# f f means file and is a reserved namespace in this knowledge base. Within this namespace you can add a unique number that includes another article. Thus you can reference articles without using the actual name. Here is an example: I want to link the article [[Prozesse Akquise - Angebot erstellen]]. Instead of using the public url , which might break in the future, you can create an new file id [[f-1]] and include the article in the id file. Once the id is published you can reference the article by using . ## Links [[f-1]], [[f-2]]