Publications Punyodaya (Na-T'i), un propagateur du tantrisme en Chine et au Cambodge a l'epoque de Hiuan-Tsang [Spreading Tantrism in China and Cambodia in the 7th century] How a scholar and translator from India at the Chinese Tang court went twice to Chenla to spread the Tantric-Buddhist faith and collect "divine medicine".
Publications North-Western Cambodia in the Seventh Century Reconstructing the geographical and political entities in the "Chenla of the Land" and "Chenla of the Water" areas during pre-Angkorean times.