| Author | Titles | | 1.
| Grassi, Ernesto, 1902-1991 | 1 | | 2.
| Grassi, Francesca | 1 | | 3.
| Grassi, Giorgio, 1935- | 5 | | 4.
| Grassi, Liliana | 1 | | 5.
| Grassi, Luigi | 3 | | 6.
| Grassi, Maurizio | 1 | | 7.
| Grassinger, Dagmar | 2 | | 8.
| Grassinger, Peter | 1 | | 9.
| Grasskamp, Walter, 1950- | 1 | | 10.
| Grassley, Heidi, 19--?- | 1 |
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