- Ingeokring Newsletter 2020/2021 No. 25 Winter (2845 downloads )
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- Ingeokring Newsletter 2014 No. 22 Autumn (3748 downloads )
- Ingeokring Newsletter 2013 Summer (3396 downloads )
- Ingeokring Newsletter 2011/2012 Winter (3334 downloads )
- Ingeokring Newsletter 2010 Summer (3338 downloads )
- Ingeokring Newsletter 2009 Sping/Summer (3504 downloads )
- Ingeokring Newsletter 2008 Special Edition (3170 downloads )
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- Ingeokring Newsletter 2006 No. 1 Vol. 13 December (3204 downloads )
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- Ingeokring Newsletter 2004 No. 1 Vol. 11 (3476 downloads )
- Ingeokring Newsletter 2003 No. 2 Vol. 10 (3331 downloads )
- Ingeokring Newsletter 2003 No. 1 Vol. 9 (2833 downloads )
- Ingeokring Newsletter 2002 No. 10 Summer (3295 downloads )
- Ingeokring Newsletter 2001 No. 9 Summer (3589 downloads )
- Ingeokring Newsletter 1999 No. 8 Summer (3520 downloads )
- Ingeokring Newsletter 1998 No. 7 Summer (3441 downloads )
- Ingeokring Newsletter 1997 No. 6 Autumn (4060 downloads )
- Ingeokring Newsletter 1997 No. 5 Spring (3363 downloads )
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- Ingeokring Newsletter 1995 No. 2 Autumn (3387 downloads )
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- Ingeokring Newsletter 1994-2 Herfst (3321 downloads )
- Ingeokring Newsletter 1994-1 Lente (3373 downloads )
- Ingeokring Newsletter 1993 Herfst (3513 downloads )
- Ingeokring Newsletter 1992-1993 Winter (3834 downloads )
- Ingeokring Newsletter 1992 Zomer (4218 downloads )
- Ingeokring Newsletter 1991-1992 Winter (4253 downloads )
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- Ingeokring Newsletter 1991-0 Lente-Zomer (3267 downloads )
- Ingeokring Newsletter 1990-3 December (3423 downloads )
- Ingeokring Newsletter 1990-2 Juni Special (2736 downloads )
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- Ingeokring Nieuwsbrief 1989-12 December (3460 downloads )
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- Ingeokring Nieuwsbrief 1983-09 September (2894 downloads )