@article{teixeira_lucas_curto_neves_duarte_andré_teixeira_2013,  title={New 1-hydroxy-1,1-bisphosphonates derived from 1H-pyrazolo[3,4-b]pyridine: synthesis and characterization},  volume={24},  ISSN={0103-5053},  url={https://doi.org/10.5935/0103-5053.20130164},  DOI={10.5935/0103-5053.20130164},  number={8},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Teixeira, Fátima C. and Lucas, Carla and Curto, M. João M. and Neves, M. and Duarte, M. Teresa and André, Vânia and Teixeira, António P. S.},  year={2013},  month={Aug},  pages={1295–1306} }