Dansk Boomerang Klub: www.geocities.com/DanskBoomerangKlub
Deutcher Bumerang Club www.bumerangclub.de/
British Boomerang Society: www.lazo.freeserve.co.uk
How to make boomerangs: www.uku.fi/~hniskane/workmain.html
Boomerang links fra hele verden: www.flight-toys.com/boomerangs.htm
Unspinning the Boomerang plus.maths.org/issue7/features/boomerangs/
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