Published in Bulletin du Muséum National d'Histoire Naturelle Section B,Adansonia, botanique, phytochimie, in 1989, in volume 11, issue 4, pages 461-468
Published in Bulletin du Muséum National d'Histoire Naturelle Section B,Adansonia, botanique, phytochimie, in 1990, in volume 12, issue 3-4, pages 239-242
Published in Atti Della Societa Italiana Di Scienze Naturali E Del Museo Civico Di Storia Naturale In Milano, in 1979, in volume 120, issue 1-2, pages 126-131