Moraitopoulos, I. , Ioannou, Z. , Simitzis, J.. "Adsorption of Phenol, 3-Nitrophenol and Dyes from Aqueous Solutions onto an Activated Carbon Column under Semi-Batch and Continuous Operation". World Academy of Science, Engineering and Technology, Open Science Index 34, International Journal of Chemical and Molecular Engineering, (2009), 3(10), 558 - 562.