| Author | Titles | | 1.
| Hormingon, Juan António | 1 | | 2.
| Horn, 1955- | 0 | | 3.
| Author is: Horn, Roni, 1955- | 17 | | 4.
| Horn, Carl | 1 | | 5.
| Horn, Geroge H. | 1 | | 6.
| Horn, Jack | 1 | | 7.
| Horn, Rebecca, 1944- | 10 | | 8.
| Horn, Roni, 1955- | 17 | | 9.
| Horn, Susanna | 2 | | 10.
| Horn, Volker | 1 | | 11.
| Horn, W. O., pseud. | 1 |
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