| Author | Titles | | 1.
| Klostermann, Erich | 1 | | 2.
| Klotz, Heinrich | 7 | | 3.
| Klotz, Reinholdus | 1 | | 4.
| Kluckert, Ehrenfried | 1 | | 5.
| Kluczewska-Wójcik, Agnieszka | 1 | | 6.
| Kluge, Alexander, 1932- | 2 | | 7.
| Kluge, Bernd | 1 | | 8.
| Kluge, Gustav, 1947- | 1 | | 9.
| Klugman, Julie | 2 | | 10.
| Klumpke, Anna | 1 |
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