title: Getting "longnamesfirst" option to work with natbib in LaTeX - custom .bst
body: <p>I'm writing an MSc dissertation and I'm having difficulty getting the longnamesfirst option working in natbib. </p>
  
  <p>My University has a very specific referencing style a little like APA, but not quite the same. I've used the docstrip utility to build a basic framework and then edited it to fit the requirements of my University.</p>
  
  <p>Having tested it with the simplest possible document; applying my bst then trying it again with one of the defaults (\bibliographystyle{apacite}) I can see than natbib works as intended with apacite. It doesn't however produce correct results with my bst. </p>
  
  <p>So my question:
  How does the .bst file link with natbib to enforce the "longnamesfirst" option?</p>