Study of persistent luminescence mechanisms of PR3+ doped materials with x-ray absorption spectroscopy - Rodrigues, Lucas Carvalho Veloso; Brito, Hermi Felinto de; Hölsa, Jorma; Lastusaari, Mika; Felinto, Maria Claudia França da Cunha; Carvalho, José Miranda de; Paganini, Paula Pinheiro (Annual Users Meeting of the Brazilian Synchrotron Light Laboratory (RAU/LNLS), 2014)