| Author | Titles | | 1.
| Galer, Gregory J. | 1 | | 2.
| Galer, I.A.R. | 1 | | 3.
| Galereia Borgeze (Roma, Itália) | 0 | | 4.
| Author is: Galleria Borghese (Roma, Itália) | 2 | | 5.
| Galeria 02 (Porto, Portugal) | 12 | | 6.
| Galeria 05 (Coimbra, Portugal) | 4 | | 7.
| Galeria 111 (Lisboa, Portugal) | 299 | | 8.
| Related author: Galeria Zen ( Porto, Portugal ) | 69 | | 9.
| Related author: Galeria 111 ( Porto, Portugal ) | 34 | | 10.
| Galeria 111 ( Porto, Portugal ) | 34 | | 11.
| Related author: Galeria Zen ( Porto, Portugal ) | 69 | | 12.
| Related author: Galeria 111 (Lisboa, Portugal) | 299 | | 13.
| Galeria 1839 (Lisboa, Portugal) | 1 | | 14.
| Galeria 1991 (Lisboa, Portugal) | 6 | | 15.
| Galeria 2 (Porto, Portugal) | 0 | | 16.
| Author is: Galeria 02 (Porto, Portugal) | 12 |
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