| Author | Titles | | 1.
| Keller, Samuel | 6 | | 2.
| Keller, San, 1971- | 1 | | 3.
| Keller, Ulrich, 1944- | 1 | | 4.
| Keller, Walter | 6 | | 5.
| Keller, Werner | 3 | | 6.
| Keller, Will | 1 | | 7.
| Keller, Wolfgang | 1 | | 8.
| Keller-Euzinger, Franz | 1 | | 9.
| Kellerhoven, Franz, ca 1814-1872 | 3 | | 10.
| Keller-Mack, Eduard | 2 |
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