| Verfasser | Häufigkeit |
| Domínguez Vázquez, María José 1972- |
9 |
| Engel, Ulrich 1928-2020 |
9 |
| Paredes Suarez, Gemma |
9 |
| Dupey, Robert |
1 |
| Echteld, Elisabeth Agnes Maria 1959- |
1 |
| Faraclas, Nicholas 1945- |
1 |
| Rutgers, Wim 1941- |
1 |
| Severing, Ronald 1949- |
1 |
| Weijer, Christa |
1 |