Source: http://primoangelo2003.free.fr/Mes%20documents/Cours/Cours%20CRPE/Sciences%20et%20technologie%20sup%20de%20cours/2-Biologie/Cours%20biologie/2-Fonctions%20de%20nutrition/6-Nutrition%20des%20v%E9g%E9taux/Nutrition%20des%20v%E9g%E9taux%20chlorophylliens.pdf