| Author | Titles | | 1.
| Roest, Th.- M. | 1 | | 2.
| Roethel, Hans K., 1909 -1982 | 0 | | 3.
| Author is: Roethel, Hans Konrad, 1909 -1982 | 3 | | 4.
| Roethel, Hans Konrad, 1909 -1982 | 3 | | 5.
| Roethlisberger, Marcel, 1929- | 1 | | 6.
| Roethlisberger, Marcel 1929- | 11 | | 7.
| Roethlisberger, Marcel George, 1929- | 0 | | 8.
| Author is: Roethlisberger, Marcel, 1929- | 1 | | 9.
| Author is: Roethlisberger, Marcel 1929- | 11 | | 10.
| Roethlisberger-Bianco, Marcel, 1929- | 0 | | 11.
| Author is: Roethlisberger, Marcel, 1929- | 1 | | 12.
| Author is: Roethlisberger, Marcel 1929- | 11 | | 13.
| Roettgen, Steffi | 4 | | 14.
| Roetting, Petra | 2 | | 15.
| Roey, Joseph Ernest van, 1874-1961 | 1 |
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