@ARTICLE {9991,
author={C. C. Costa and P. M. Marques and P. C. Carvalho},
doi={10.1017/S1431927612013037},
journal={Microscopy and Microanalysis},
title={An SEM Investigation of the Pozzolanic Activity of a Waste Catalyst from Oil Refinery},
year={2012},
month={September},
volume={18},
number={5},
pages={75-76},
ISSN={1431-9276}
}