H. Norouznia and A. H. Hamidian, “Phytoremediation efficiency of pondweed (Potamogeton crispus) in removing heavy metals (Cu, Cr, Pb, As and Cd) from water of Anzali wetland”, Intl. J. Aquat. Biol., vol. 2, no. 4, pp. 206–214, Sep. 2014.