- Ingeokring Newsletter 2020/2021 No. 25 Winter (2803 downloads )
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- Ingeokring Newsletter 2014 No. 22 Autumn (3703 downloads )
- Ingeokring Newsletter 2013 Summer (3354 downloads )
- Ingeokring Newsletter 2011/2012 Winter (3293 downloads )
- Ingeokring Newsletter 2010 Summer (3293 downloads )
- Ingeokring Newsletter 2009 Sping/Summer (3447 downloads )
- Ingeokring Newsletter 2008 Special Edition (3124 downloads )
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- Ingeokring Newsletter 2006 No. 1 Vol. 13 December (3166 downloads )
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- Ingeokring Newsletter 2003 No. 2 Vol. 10 (3279 downloads )
- Ingeokring Newsletter 2003 No. 1 Vol. 9 (2797 downloads )
- Ingeokring Newsletter 2002 No. 10 Summer (3247 downloads )
- Ingeokring Newsletter 2001 No. 9 Summer (3545 downloads )
- Ingeokring Newsletter 1999 No. 8 Summer (3479 downloads )
- Ingeokring Newsletter 1998 No. 7 Summer (3396 downloads )
- Ingeokring Newsletter 1997 No. 6 Autumn (4006 downloads )
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- Ingeokring Newsletter 1995 No. 2 Autumn (3341 downloads )
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- Ingeokring Newsletter 1994-2 Herfst (3273 downloads )
- Ingeokring Newsletter 1994-1 Lente (3327 downloads )
- Ingeokring Newsletter 1993 Herfst (3465 downloads )
- Ingeokring Newsletter 1992-1993 Winter (3775 downloads )
- Ingeokring Newsletter 1992 Zomer (4173 downloads )
- Ingeokring Newsletter 1991-1992 Winter (4207 downloads )
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- Ingeokring Newsletter 1991-0 Lente-Zomer (3230 downloads )
- Ingeokring Newsletter 1990-3 December (3383 downloads )
- Ingeokring Newsletter 1990-2 Juni Special (2707 downloads )
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- Ingeokring Nieuwsbrief 1989-12 December (3403 downloads )
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- Ingeokring Nieuwsbrief 1983-09 September (2863 downloads )