Rossoni, D., Maillot, E., & Déguillaume, E. (2007). Les ovnis du CNES – 30 ans d’études officielles. www.book-e-book.com. (extracts from the book in French)Archived 2007-09-27 at the Wayback Machine. Critical skeptical investigations of GEPAN's work.
zetetique.fr
Rossoni, D., Maillot, E., & Déguillaume, E. (2007). Les ovnis du CNES – 30 ans d’études officielles. www.book-e-book.com. (extracts from the book in French)Archived 2007-09-27 at the Wayback Machine. Critical skeptical investigations of GEPAN's work.
