| Author | Titles | | 1.
| Janssen, Anouk | 1 | | 2.
| Janssen, Cuny, 1975- | 1 | | 3.
| Janssen, Dieter | 1 | | 4.
| Janssen, H., 1929-1995 | 0 | | 5.
| Author is: Janssen, Horst, 1929-1995 | 1 | | 6.
| Janssen, Hans | 4 | | 7.
| Janssen, Horst, 1929-1995 | 1 | | 8.
| Janssen, Johannes, 1829-1891 | 2 | | 9.
| Janssen, Lydia | 1 | | 10.
| Janssen, Paul Huys | 1 | | 11.
| Janssen, Ward, 1947- | 1 |
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