| Autor | Títulos | 1.
| Koldewijn, Marcel | 2 | 2.
| Koldo Mitxelena Kulturunea (San Sebastian, Espanha) | 48 | 3.
| Kolecek, Michal | 1 | 4.
| Kolecki, Wojciech | 1 | 5.
| Kolehmainen, Ola | 1 | 6.
| Kolenberg, Michel | 1 | 7.
| Kolesnikova, Anna | 1 | 8.
| Kolev, Vasil | 1 | 9.
| Kolex, Vasil | 1 | 10.
| Koleychuk, Vyacheslav F. | 2 |
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