@ARTICLE {4963,
author={R. A. Sá Ferreira and D C Oliveira and L. Q. Maia and  Vicente and P.S André and V. Bermudez and S. J. L. R. Ribeiro and L. Carlos},
doi={10.1016/j.optmat.2010.05.028},
journal={Optical Materials},
title={Enhanced photoluminescence features of Eu3+-modified di-ureasil-zirconium oxocluster organic–inorganic hybrids},
year={2010},
month={September},
volume={32},
number={11},
pages={1587-1591},
ISSN={0925-3467}
}