5 books
Tales of a Minstrel of Reims in the Thirteenth Century
Lancelot-Grail 10: Chapter Summaries for the Vulgate and Post-Vulgate Cycles and Index of Proper Names
Lancelot-Grail: 3. Lancelot part I and II
Lancelot-Grail: 4. Lancelot part III and IV
The Monophonic Songs in the Roman de Fauvel