- Ingeokring Newsletter 2020/2021 No. 25 Winter (2641 downloads )
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- Ingeokring Newsletter 2010 Summer (3112 downloads )
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- Ingeokring Newsletter 2008 Special Edition (2938 downloads )
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- Ingeokring Newsletter 2006 No. 1 Vol. 13 December (2966 downloads )
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- Ingeokring Newsletter 2003 No. 2 Vol. 10 (3079 downloads )
- Ingeokring Newsletter 2003 No. 1 Vol. 9 (2655 downloads )
- Ingeokring Newsletter 2002 No. 10 Summer (3053 downloads )
- Ingeokring Newsletter 2001 No. 9 Summer (3354 downloads )
- Ingeokring Newsletter 1999 No. 8 Summer (3268 downloads )
- Ingeokring Newsletter 1998 No. 7 Summer (3214 downloads )
- Ingeokring Newsletter 1997 No. 6 Autumn (3803 downloads )
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- Ingeokring Newsletter 1995 No. 2 Autumn (3144 downloads )
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- Ingeokring Newsletter 1994-2 Herfst (3078 downloads )
- Ingeokring Newsletter 1994-1 Lente (3120 downloads )
- Ingeokring Newsletter 1993 Herfst (3258 downloads )
- Ingeokring Newsletter 1992-1993 Winter (3556 downloads )
- Ingeokring Newsletter 1992 Zomer (3935 downloads )
- Ingeokring Newsletter 1991-1992 Winter (3996 downloads )
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- Ingeokring Newsletter 1991-0 Lente-Zomer (3025 downloads )
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- Ingeokring Newsletter 1990-2 Juni Special (2584 downloads )
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- Ingeokring Nieuwsbrief 1989-12 December (3200 downloads )
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- Ingeokring Nieuwsbrief 1983-09 September (2744 downloads )