- Ingeokring Newsletter 2020/2021 No. 25 Winter (2846 downloads )
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- Ingeokring Newsletter 2014 No. 22 Autumn (3749 downloads )
- Ingeokring Newsletter 2013 Summer (3398 downloads )
- Ingeokring Newsletter 2011/2012 Winter (3335 downloads )
- Ingeokring Newsletter 2010 Summer (3339 downloads )
- Ingeokring Newsletter 2009 Sping/Summer (3506 downloads )
- Ingeokring Newsletter 2008 Special Edition (3171 downloads )
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- Ingeokring Newsletter 2006 No. 1 Vol. 13 December (3205 downloads )
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- Ingeokring Newsletter 2003 No. 2 Vol. 10 (3332 downloads )
- Ingeokring Newsletter 2003 No. 1 Vol. 9 (2834 downloads )
- Ingeokring Newsletter 2002 No. 10 Summer (3296 downloads )
- Ingeokring Newsletter 2001 No. 9 Summer (3590 downloads )
- Ingeokring Newsletter 1999 No. 8 Summer (3521 downloads )
- Ingeokring Newsletter 1998 No. 7 Summer (3442 downloads )
- Ingeokring Newsletter 1997 No. 6 Autumn (4061 downloads )
- Ingeokring Newsletter 1997 No. 5 Spring (3364 downloads )
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- Ingeokring Newsletter 1995 No. 2 Autumn (3388 downloads )
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- Ingeokring Newsletter 1994-2 Herfst (3322 downloads )
- Ingeokring Newsletter 1994-1 Lente (3374 downloads )
- Ingeokring Newsletter 1993 Herfst (3515 downloads )
- Ingeokring Newsletter 1992-1993 Winter (3835 downloads )
- Ingeokring Newsletter 1992 Zomer (4220 downloads )
- Ingeokring Newsletter 1991-1992 Winter (4254 downloads )
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- Ingeokring Newsletter 1991-0 Lente-Zomer (3268 downloads )
- Ingeokring Newsletter 1990-3 December (3424 downloads )
- Ingeokring Newsletter 1990-2 Juni Special (2737 downloads )
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- Ingeokring Nieuwsbrief 1989-12 December (3461 downloads )
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- Ingeokring Nieuwsbrief 1983-09 September (2895 downloads )