| Author | Titles | | 1.
| Klanten, Robert | 3 | | 2.
| Klanten, Robert ; Hubner, M. ; Bieber, A. | 1 | | 3.
| Klapheck, Konrad, 1935- | 2 | | 4.
| Klapheck, Richard | 1 | | 5.
| Klapp, Ernst, 1894-1975 | 2 | | 6.
| Klar, Alexander | 1 | | 7.
| Klaruill, Ernest | 1 | | 8.
| Klary, Susanne, 1980- | 1 | | 9.
| Klasen, Marisa | 1 | | 10.
| Klasen, Peter, 1935- | 9 |
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