Bourliva, A., K. Michailidis, C. Sikalidis, and G. Trontsios. 2004. “REMOVAL OF LEAD (Pb ) AND ZINC (Zn ) FROM AQUEOUS SOLUTIONS BY ADSORPTION ON VERMICULITE FROM ASKOS AREA IN MACEDONIA (NORTHERN GREECE)”. Bulletin of the Geological Society of Greece 36 (1):182-91. https://doi.org/10.12681/bgsg.16617.