Milojković, J., M. Stojanović, M. Mihajlović, and Z. Lopičić. “Removal of Pb(II) Using Alginate – Immobilized Myriophyllum Spicatum Beads”. European Journal of Sustainable Development, vol. 5, no. 4, Oct. 2016, p. 457, doi:10.14207/ejsd.2016.v5n4p457.