message: Some bad cgal referenced bibliography as it was updated
diff: @@ -11,8 +11,8 @@ Definition
  Alpha_complex is constructing a :doc:`Simplex_tree <simplex_tree_ref>` using
  `Delaunay Triangulation <http://doc.cgal.org/latest/Triangulation/index.html#Chapter_Triangulations>`_
  -:cite:`cgal:hdj-t-15b` from `CGAL <http://www.cgal.org/>`_ (the Computational Geometry Algorithms Library
  -:cite:`cgal:eb-15b`).
  +:cite:`cgal:hdj-t-19b` from `CGAL <http://www.cgal.org/>`_ (the Computational Geometry Algorithms Library
  +:cite:`cgal:eb-19b`).
  Remarks
  ^^^^^^^
  