| Author | Titles | | 1.
| Gatt, Giuseppe | 6 | | 2.
| Gatta, José da Costa | 1 | | 3.
| Gattégno, Jean | 1 | | 4.
| Gatti, Juan | 1 | | 5.
| Gatti, Tulio, 1942- | 1 | | 6.
| Gattiker, Marianne | 1 | | 7.
| Gattinara, Enrico Castelli | 1 | | 8.
| Gattinoni, Christian, 1950- | 2 | | 9.
| Gatto, Alfonso | 1 | | 10.
| Gatto, Matteo | 3 |
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