| Author | Titles | 1.
| R. Cristino, 1858-1948 | 0 | 2.
| Author is: Cristino, Ribeiro, 1858-1948 | 10 | 3.
| R. D. P. T. | 1 | 4.
| R. de la Flor, Fernando | 1 | 5.
| R. F. | 2 | 6.
| R. F. C. | 1 | 7.
| R., G. | 2 | 8.
| R. Gallardo, Vicky | 1 | 9.
| R. & H. Batliner Art Foundation Vaduz (Liechtenstein) | 1 | 10.
| R. Hausner, 1914-1995 | 0 | 11.
| Author is: Hausner, Rudolf, 1914-1995 | 1 | 12.
| R., J. C. | 1 |
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