| Author | Titles | | 1.
| Zatti, Paola | 3 | | 2.
| Zaugg, Fred | 1 | | 3.
| Zaugg, Rémy, 1943-2005 | 2 | | 4.
| Zaugg-Röthlisberger, Michele | 1 | | 5.
| Zaunschirm, Thomas | 1 | | 6.
| Zautashvili, Iliko, 1952- | 2 | | 7.
| Zavadil, Paulo | 1 | | 8.
| Zavala, Lauro | 1 | | 9.
| Zavala, Manuel | 1 | | 10.
| Zavala, Silvio, 1909-2014 | 1 |
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