You can check content reference dependencies by using the Content Editor.
To check where an element is reused, do the following:
Open a warehouse topic.
Tip: In the Content Editor, the Reuse button indicates that a given element is reused in other topics. The number that corresponds to the Reuse button indicates how many times the element is reused.
Click the Reuse button.
A list of files that reuse the element appear.
Open a topic that reuses the element by clicking the file title.
The topic opens in a new tab.
To check from which warehouse topic the element is reused, do the following:
Open a topic that reuses elements from warehouse topics.
Tip: In the Content Editor, the gray background around an element indicates that a given element is reused.