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| Kalender April 1981 | ||||||||||
| Montag | Dienstag | Mittwoch | Donnerstag | Freitag | Samstag | Sonntag | ||||
| 1 | 2
| 3 | 4 | 5
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| 6 (15. Woche) | 7 | 8 | 9 | 10 | 11 | 12 | ||||
| 13 (16. Woche) | 14 | 15 | 16 | 17 | 18 | 19 | ||||
| 20 (17. Woche) | 21 | 22
| 23
| 24 | 25 | 26 | ||||
| 27 (18. Woche) | 28 | 29 | 30 | |||||||
| Forensoftware: Burning Board 2.3.4, entwickelt von WoltLab GmbH |