| Author | Popularity |
| Alcalde, Juan |
2 |
| Bakhtbidar, Mahdi |
2 |
| Ballesteros, Julio |
2 |
| Canal, Jacobo |
2 |
| Carbonell, Ramón |
2 |
| Cavanagh, Andrew |
2 |
| Elío, Javier |
2 |
| European Commission |
2 |
| Gomez-Rivasa, Enrique |
2 |
| Haszeldine, Stuart |
2 |
| Heinemann, Niklas |
2 |
| Johnson, Gareth |
2 |
| Martínez-Orio, Roberto |
2 |
| Marzán, Ignacio |
2 |
| Rubiera González, Fernando |
2 |
| Sun, Xiaolong |
2 |
| Travé, Anna |
2 |
| Vega-Maza, David |
2 |
| Vilarrasa, Víctor |
2 |
