- Ingeokring Newsletter 2020/2021 No. 25 Winter (2074 downloads )
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- Ingeokring Newsletter 2014 No. 22 Autumn (2834 downloads )
- Ingeokring Newsletter 2013 Summer (2522 downloads )
- Ingeokring Newsletter 2011/2012 Winter (2520 downloads )
- Ingeokring Newsletter 2010 Summer (2505 downloads )
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- Ingeokring Newsletter 2008 Special Edition (2364 downloads )
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- Ingeokring Newsletter 2006 No. 1 Vol. 13 December (2360 downloads )
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- Ingeokring Newsletter 2003 No. 2 Vol. 10 (2467 downloads )
- Ingeokring Newsletter 2003 No. 1 Vol. 9 (2224 downloads )
- Ingeokring Newsletter 2002 No. 10 Summer (2445 downloads )
- Ingeokring Newsletter 2001 No. 9 Summer (2703 downloads )
- Ingeokring Newsletter 1999 No. 8 Summer (2636 downloads )
- Ingeokring Newsletter 1998 No. 7 Summer (2653 downloads )
- Ingeokring Newsletter 1997 No. 6 Autumn (3169 downloads )
- Ingeokring Newsletter 1997 No. 5 Spring (2549 downloads )
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- Ingeokring Newsletter 1995 No. 2 Autumn (2563 downloads )
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- Ingeokring Newsletter 1994-2 Herfst (2498 downloads )
- Ingeokring Newsletter 1994-1 Lente (2472 downloads )
- Ingeokring Newsletter 1993 Herfst (2608 downloads )
- Ingeokring Newsletter 1992-1993 Winter (2862 downloads )
- Ingeokring Newsletter 1992 Zomer (3284 downloads )
- Ingeokring Newsletter 1991-1992 Winter (3313 downloads )
- Ingeokring Newsletter 1991-1 Herfst (2395 downloads )
- Ingeokring Newsletter 1991-0 Lente-Zomer (2426 downloads )
- Ingeokring Newsletter 1990-3 December (2579 downloads )
- Ingeokring Newsletter 1990-2 Juni Special (2210 downloads )
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- Ingeokring Nieuwsbrief 1989-12 December (2571 downloads )
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- Ingeokring Nieuwsbrief 1983-09 September (2321 downloads )