@article{maneerat_prawat_saewan_laphookhieo_2010,  title={New coumarins from Clausena lansium twigs},  volume={21},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532010000400012},  DOI={10.1590/S0103-50532010000400012},  number={4},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Maneerat, Wisanu and Prawat, Uma and Saewan, Nisakorn and Laphookhieo, Surat},  year={2010},  pages={665–668} }