@misc{verissimo_composite_membranes_2006, 
author={Verissimo, S.},
title={Composite Membranes for PRO, NF and RO (Dissertation)},
year={2006},
howpublished = {doctoral thesis: Universitaet Lissabon, FB Chemical Engineering},
note = {Verissimo, S.: Composite Membranes for PRO, NF and RO (Dissertation). Universitaet Lissabon, FB Chemical Engineering, 2006.}}