@article{cifuentes_botero_romero_calderón_gordillo_2006,  title={Optical and structural studies on SnS films grown by co-evaporation},  volume={36},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332006000600066},  DOI={10.1590/S0103-97332006000600066},  number={3b},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Cifuentes, C. and Botero, M. and Romero, E. and Calderón, C. and Gordillo, G.},  year={2006},  month={Sep},  pages={1046–1049} }