| Verfasser | Häufigkeit |
| Goddard, Jonathan |
2 |
| Moon, Frank |
2 |
| Osipova, Natalia 1986- |
2 |
| Pita, Arthur ca. 20. Jh |
2 |
| Price, Dave |
2 |
| Martins, Ana Cristina 1989- |
1 |
| Nunes Pereira, Antonio Manuel 1967- |
1 |
| Oliveira, Nuno 1974- |
1 |
| Parques de Sintra-Monte da Lua |
1 |
| Price-Gschlössl, Ingrid |
1 |
| Seabra, Yann |
1 |