@article{polymeris2014search, author = "Πολυμέρης, Γεώργιος and Valeria Giannoulatou and Ioanna K Sfampa and Τσιρλιγκάνης, Νέστωρ and George Kitis", journal = "Journal of Luminescence", pages = "245--251", publisher = "Elsevier", title = "{S}earch for stable energy levels in materials exhibiting strong anomalous fading: the case of apatites ", volume = "153", year = "2014", }