@article{zamar_gonzález_mensio_1998,  title={Molecular motions in thermotropic liquid crystals studied by NMR spin-lattice relaxation},  volume={28},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97331998000400007},  DOI={10.1590/S0103-97331998000400007},  number={4},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Zamar, R.C. and González, C.E. and Mensio, O.},  year={1998},  month={Dec},  pages={314–328} }