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- 1988 Lanaken(B)-Istanbul(TR)
- 1991 Izmir(TR)-Trabzon(TR)
- 1992 Hattusas(TR)-Luxor(EG)
- 1993 Berlijn(D)-Istanbul(TR)
- 1995 Saigon(VN)-Hanoi(VN)
- 1996 Medan(RI)-Bengkulu(RI)
- 1997 Gent(B)-Malaga(E)
- 2003 Lanaken(B)-S.Petersburg(RU)
- 2004 Saigon(VN)-Bangkok(TH)
- 2005 Bangkok(TH)- Nongkai(TH)
- 2006 Trang(TH)-Bangkok(TH)
- 2007 Nongkai(TH)-Jinghong(CN)
- 2008 Jinghong(CN)-Shangrila(CN)
- 2009 Lijiang(CN)-Chengdu(CN)
- 2010 Chengdu(CN)-Xi'an(CN)