- Ingeokring Newsletter 2020/2021 No. 25 Winter (1853 downloads )
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- Ingeokring Newsletter 2015 No. 23 Autumn (2566 downloads )
- Ingeokring Newsletter 2014 No. 22 Autumn (2605 downloads )
- Ingeokring Newsletter 2013 Summer (2298 downloads )
- Ingeokring Newsletter 2011/2012 Winter (2322 downloads )
- Ingeokring Newsletter 2010 Summer (2297 downloads )
- Ingeokring Newsletter 2009 Sping/Summer (2455 downloads )
- Ingeokring Newsletter 2008 Special Edition (2168 downloads )
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- Ingeokring Newsletter 2006 No. 1 Vol. 13 December (2141 downloads )
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- Ingeokring Newsletter 2003 No. 2 Vol. 10 (2261 downloads )
- Ingeokring Newsletter 2003 No. 1 Vol. 9 (2082 downloads )
- Ingeokring Newsletter 2002 No. 10 Summer (2225 downloads )
- Ingeokring Newsletter 2001 No. 9 Summer (2466 downloads )
- Ingeokring Newsletter 1999 No. 8 Summer (2390 downloads )
- Ingeokring Newsletter 1998 No. 7 Summer (2463 downloads )
- Ingeokring Newsletter 1997 No. 6 Autumn (2961 downloads )
- Ingeokring Newsletter 1997 No. 5 Spring (2355 downloads )
- Ingeokring Newsletter 1996 No. 4 Autumn (2327 downloads )
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- Ingeokring Newsletter 1995 No. 2 Autumn (2380 downloads )
- Ingeokring Newsletter 1995 No. 1 Spring (2366 downloads )
- Ingeokring Newsletter 1994-2 Herfst (2318 downloads )
- Ingeokring Newsletter 1994-1 Lente (2234 downloads )
- Ingeokring Newsletter 1993 Herfst (2380 downloads )
- Ingeokring Newsletter 1992-1993 Winter (2603 downloads )
- Ingeokring Newsletter 1992 Zomer (3037 downloads )
- Ingeokring Newsletter 1991-1992 Winter (3079 downloads )
- Ingeokring Newsletter 1991-1 Herfst (2166 downloads )
- Ingeokring Newsletter 1991-0 Lente-Zomer (2217 downloads )
- Ingeokring Newsletter 1990-3 December (2363 downloads )
- Ingeokring Newsletter 1990-2 Juni Special (2079 downloads )
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- Ingeokring Nieuwsbrief 1989-12 December (2366 downloads )
- Ingeokring Nieuwsbrief 1989-07 Juli (2423 downloads )
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- Ingeokring Nieuwsbrief 1985-02 Februari (2001 downloads )
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- Ingeokring Nieuwsbrief 1983-09 September (2184 downloads )