| Verfasser | Häufigkeit |
| Pierrard, André |
7 |
| Housen, Alex 1964- |
2 |
| Pierrard, Alexis |
2 |
| Pierrard, Michel |
2 |
| Chappat, Jean-Louis 1955- |
1 |
| Decourtray, Albert 1923-1994 |
1 |
| Hadermann, Pascale |
1 |
| Janssens, Sonja |
1 |
| La Perriere, Patrice de |
1 |
| Pierrard, A. |
1 |
| Pierrard, G. A. |
1 |
| Pierrard, Michel 1951- |
1 |
| Pierrard, Pierre 1920- |
1 |
| Robert, Joseph 1910-1991 |
1 |
| Roig, Audrey |
1 |
| Van Raemdonck, Dan |
1 |
| Vinatier, Jean 1917-1998 |
1 |