Karaf 4: How to fugure out which bundle is needed where?

[Richard Snowden]

I understood that with "bundle:tree-show <my-bundle-id>" I get a list of
bundles that are needed by bundle <my-bundle-id>.

But what I need is basically the other way round: Information in which
bundles this <my-bundle-id> is needed.

How can I do this in Karaf 4?