| Author | Titles | | 1.
| Klein, Robert | 9 | | 2.
| Klein, Rosa, 1905-1970 | 0 | | 3.
| Author is: André, Rogi | 2 | | 4.
| Klein, Steven, 1962 - | 3 | | 5.
| Klein, Théo | 1 | | 6.
| Klein, Thomas F. | 2 | | 7.
| Klein, Walter | 2 | | 8.
| Klein, William, 1928-2022 | 12 | | 9.
| Klein, Yves, 1928-1962 | 11 | | 10.
| Kleinberg, Sacha | 1 | | 11.
| Kleinberg, Susan, 1949-2023 | 1 |
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