@article{CSIS_2021_18_1_a11,
     author = {Pedro Huidobro and Pedro Alonso and Vladim{\'\i}r Jani\v{s} and Susana Montes},
     title = {Convexity of hesitant fuzzy sets based on aggregation functions},
     journal = {Computer Science and Information Systems},
     year = {2021},
     volume = {18},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/CSIS_2021_18_1_a11/}
}