Merging duplicates of important interfaces

I've noticed a few duplicates of important interfaces, and I'd like to merge them. 

An example is Document. One page has a lot of information, and the other has almost none:
http://docs.webplatform.org/wiki/dom/document
http://docs.webplatform.org/wiki/dom/apis/document

The same situation exists for Window:
http://docs.webplatform.org/wiki/dom/window
http://docs.webplatform.org/wiki/apis/window

I marked these as merge candidates, but I'm not sure which to keep. What are the standard URLs for these interfaces?

Thanks,
Tim