| Author | Titles | | 1.
| Hartmann, A. | 1 | | 2.
| Hartmann, Alfred | 1 | | 3.
| Hartmann, Antonin | 1 | | 4.
| Hartmann, Barbara | 1 | | 5.
| Hartmann, C. Sadakichi, 1867-1944 | 0 | | 6.
| Author is: Hartmann, Sadakichi, 1867-1944 | 1 | | 7.
| Hartmann, Carl Sadakichi, 1867-1944 | 0 | | 8.
| Author is: Hartmann, Sadakichi, 1867-1944 | 1 | | 9.
| Hartmann, Carolus | 1 | | 10.
| Hartmann, Édouard de | 1 | | 11.
| Hartmann, Erich, 1922- | 1 | | 12.
| Hartmann, Ernest | 1 |
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