@article{barbosa-filho_athayde-filho_silva_agra_bhattacharyya_1996,  title={Constituents of Ipomoea horrida Humber ex ducke: spectroscopic identification of the flavonoids},  volume={5},  ISSN={0102-695X},  url={https://doi.org/10.1590/S0102-695X1996000200003},  DOI={10.1590/S0102-695X1996000200003},  number={2},  journal={Revista Brasileira de Farmacognosia},  publisher={Sociedade Brasileira de Farmacognosia},  author={Barbosa-Filho, Jose M. and Athayde-Filho, Petrônio F. and Silva, Patrícia M. Simões da and Agra, Maria de Fatima and Bhattacharyya, Jnanabrata},  year={1996},  pages={161–166} }