@PHDTHESIS{rizwa2012, url = "http://www.theses.fr/2012AIXM4335", title = "Silicon-mediated heavy-metal tolerance in durum wheat : evidences of combined effects at the plant and soil levels", author = "Rizwan, Muhammad", year = "2012", note = "Thèse de doctorat dirigée par Keller, Catherine et Meunier, Jean Dominique Géosciences de l'environnement Aix-Marseille 2012", note = "2012AIXM4335", url = "http://www.theses.fr/2012AIXM4335/document", }