| Author | Titles | | 1.
| Schumacher, Andreas | 2 | | 2.
| Schumacher, Eric, 1966- | 1 | | 3.
| Schumacher, Fritz | 1 | | 4.
| Schumacher, Gottfried, 1956- | 1 | | 5.
| Schumacher, Heinrich Vollrat | 1 | | 6.
| Schumacher, Iwan | 1 | | 7.
| Schumacher, Julie | 1 | | 8.
| Schumacher, Kuno | 1 | | 9.
| Schumacher, Patrik | 4 | | 10.
| Schumacher, Patrik, 1961- | 1 |
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