Using DocBook and ROBOdoc

Hi, i've been a lurker here for years. While most of my questions have 
been answered throughout my time here, I have not come across an 
answer for this one.

My projects documentation is in DocBook, and output to HTML.

I would like to use ROBOdoc for my source files, and use the docbook 
files, that ROBOdoc generates as a 'reference' chapter in the 
existing documentation.

Now, I am unsure how to (in a good way), merge these two together. I 
could do it by hand. But I want to avoid that. 

Does anyone have any suggestions or experience on this?

- Casey