@article{lim_kim_yu_lee_2009,  title={Influence of HEMA content on the mechanical and bonding properties of experimental HEMA-added glass ionomer cements},  volume={17},  ISSN={1678-7757},  url={https://doi.org/10.1590/S1678-77572009000400013},  DOI={10.1590/S1678-77572009000400013},  number={4},  journal={Journal of Applied Oral Science},  publisher={Faculdade De Odontologia De Bauru - USP},  author={Lim, Ho-Nam and Kim, Seong-Hwan and Yu, Bin and Lee, Yong-Keun},  year={2009},  month={Jul},  pages={340–349} }