Opening PGN from the Pitt Archive.
Opening: 1847 Games, 1620-1998, from Hechiceros (you
must navigate into the site to find this)
Tim. Bishop's Opening. The Chess Player 1973.
Tim. Philidor's Defense: A Re-appraisal. Chess Digest
Exactly Is the Bishop's Opening? Kibitzer 27.
Paul. "Lauferspiel." Dreispringerspiel bis
Konigsgambit. Berlin: Sportverlag 1974. 207-213.
Tony. Winning with the Philidor Defense. New York:
Henry Holt 1992.
Gary. Winning with the Bishop's Opening. New York:
Henry Holt 1993.
Bent. Chapter C24 in Encyclopedia of Chess Openings
(ECO). Beograd 1981.
Emmanuel. Lasker's Manual of Chess. Dover.
Colin. Bishop's Opening. Self published 1990. Available
from Chess Digest.
Defense PGN File from the Pitt Archives.
Openings Chess Sites (no longer available?)
Game PGN File from the Pitt Archives.
James. The Philidor Countergambit. Chess Enterprises
Opening. Promises to increase coverage here.
Chess Club. The
Modern Italian Game. Covers closed lines of the Bishop's
opening with 3.d3.
Eric, ed. Chess City. Bishop's
Opening - Lopez Gambit. Covers the line 1.e4 e5 2.Bc4