Characterization of phosphogypsum deposited in Schistos remediated waste site (Piraeus, Greece) - Papageorgiou, F; Godelitsas, A.; Xanthos, S; Voulgaris, N.; Nastos, P.; Mertzimekis, T. J.; Argyraki, A; Katsantonis, G (Uranium-Past and Future Challenges, 2015)