| Author | Popularity |
| Casas, Maribel |
9 |
| Grimalt, Joan O. |
8 |
| Sunyer, Jordi |
5 |
| Vrijheid, Martine |
5 |
| European Commission |
4 |
| Ballester, Ferrán |
3 |
| Gascon, Mireia |
3 |
| Llop, Sabrina |
3 |
| Lopez-Espinosa, Maria-Jose |
3 |
| Basterrechea, Mikel |
2 |
| Fort, Marta |
2 |
| García-Esteban, Raquel |
2 |
| Gil, Fernando |
2 |
| Ibarluzea, Jesús |
2 |
| Lozano, Manuel |
2 |
| Marina, Loreto Santa |
2 |
| Murcia, Mario |
2 |
| Olmedo, Pablo |
2 |
| Riutort-Mayol, Gabriel |
2 |
| Soler-Blasco, Raquel |
2 |
