| Author | Titles | | 1.
| Hajdu, Étienne, 1907-1996 | 5 | | 2.
| Hajdu, Etienne, 1907-1996 | 0 | | 3.
| Author is: Hajdu, Étienne, 1907-1996 | 5 | | 4.
| Hajdú, István, 1907-1996 | 0 | | 5.
| Author is: Hajdu, Étienne, 1907-1996 | 5 | | 6.
| Hájek, Lubor | 4 | | 7.
| Hajek, Otto Herbert, 1927-2005 | 1 | | 8.
| Hajek, Petr, 1970 - | 1 | | 9.
| Hajj, Joelle | 1 | | 10.
| Hajjaj, Hassan | 1 | | 11.
| Hajkowicz, Kajetan | 1 | | 12.
| Hajlani, Alex Med, 1957- | 1 |
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