| Author | Titles | | 1.
| Simpson, Moira G. | 1 | | 2.
| Simpson, Nicola | 1 | | 3.
| Simpson, Peter, 19--?- | 1 | | 4.
| Simpson, Philippa | 1 | | 5.
| Simpson, Tony | 2 | | 6.
| Simpson Veronica | 1 | | 7.
| Simpson, William John Ritchie | 1 | | 8.
| Simpson, William Kelly | 3 | | 9.
| Šimrak, Robert, 1967- | 1 | | 10.
| Simrock, Karl | 2 |
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