1. Palynology of Amazonia: the history of the forests as revealed by the palynological record;Absy,1985
2. Some palaeoecological data from Rondônia, southern part of the Amazon basin;Absy;Acta Amazon.,1976
3. Mise en évidence de quatre phases d'ouverture de la forêt dense dans le sud-est de l'Amazonie au cours des 60,000 dernières années;Absy;C. R. Acad. Sci. Paris Ser. II,1991
4. Paleovegetação e paleoclima no Quaternário tardio da vereda de Águas Emendadas, DF;Barberi;Diss. Mestrado, Univ. Brasília,1994
5. Análise palinológica da vereda de Águas Emendadas (DF);Barberi,1995