^Tyler, Varro E. (1976) Philatelic Forgers: Their Lives and Works. London: Robson Lowe, pp. 34-35.
Further reading
The Oneglia Engraved Forgeries Commonly Attributed to Angelo Panelli,
Robson Lowe & Carl Walske, James Bendon, Limassol, Cyprus, 1996.
ISBN9963-579-73-6.