Published in Bulletin du Muséum National d'Histoire Naturelle Section B,Adansonia, botanique, phytochimie, in 1993, in volume 15, issue 1-4, pages 147-151
Published in Bulletin du Muséum National d'Histoire Naturelle Section B,Adansonia, botanique, phytochimie, in 1988, in volume 10, issue 3, pages 263-270