@article{Roldan_Alvarez_2021,
title={Understanding Discussions of Citizen Science Around Sustainable Development Goals in Twitter},
volume={9},
ISSN={2169-3536},
url={http://dx.doi.org/10.1109/access.2021.3122086},
DOI={10.1109/access.2021.3122086},
journal={IEEE Access},
publisher={Institute of Electrical and Electronics Engineers (IEEE)},
author={Roldan-Alvarez,
David and Martinez-Martinez,
Fernando and Martin,
Estefania and Haya,
Pablo A.},
year={2021},
pages={144106–144120} }