@article{__yusuf_2017,  title={Influence of Cross-Linker Concentration on Physical Properties of Main-Chain Liquid Crystalline Elastomers},  volume={20},  ISSN={1516-1439},  url={https://doi.org/10.1590/1980-5373-MR-2017-0375},  DOI={10.1590/1980-5373-MR-2017-0375},  number={6},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Supardi and Harsojo and Yusuf, Yusril},  year={2017},  month={Nov},  pages={1541–1547} }