| Verfasser | Häufigkeit |
| Carey, Lindsey Drylie |
2 |
| Díez de Revenga, Francisco Javier 1946- |
2 |
| García-Medina, Irene |
2 |
| Medina Rojas, Francisco de Borja |
2 |
| Rienda, Laura |
2 |
| Ruiz-Fernández, Lorena |
2 |
| Alaminos López, Eduardo 1950- |
1 |
| Barrueco, Manuel 1952- |
1 |
| Berthold, Beatrice 1964- |
1 |
| Bock, Günther |
1 |
| Castro, Clara |
1 |
| Falquez-Medina, Rosalux |
1 |
| Ferguson, Russell 1956- |
1 |
| Fernandez, Ramon |
1 |
| Fernández Romero, Ricardo |
1 |
| Fernández-Medina, Nicolás |
1 |
| Fisher, Jean 1942-2016 |
1 |
| Highfill, Juli |
1 |
| Hoyle, Alan |
1 |
| Huergo Cardoso, Humberto |
1 |