--- PDAL-2.2.0-src/doc/conf.py.orig	2021-01-28 17:38:42.806368389 +0100
+++ PDAL-2.2.0-src/doc/conf.py	2021-01-28 17:39:31.006941263 +0100
@@ -58,6 +58,7 @@ extensions = ['breathe', 'sphinx.ext.aut
               'sphinx.ext.mathjax', 'sphinx.ext.intersphinx',
               'sphinxcontrib.bibtex', 'embed','sphinxcontrib.spelling']
 
+bibtex_bibfiles = ['bibliography.bib']
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']