References
Daniel Unger
A message for the queen: Guercino's Death of dido, cardinal spada, and the internal conflicts at the French court
2005
in: Human creation between reality and illusion, Dordrecht : Springer
The restitution of the terrestrial iconography of St. Francis in the post-Trent era: Annibale Carracci's St. Francis in penitence
2004
in: Metamorphosis, Dordrecht : Kluwer