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algorithm - Finding the optimal depth/ranges in a set of quad trees to optimize retrieval of points in bounding box - Stack Overflow
16yo boy found dead after search following quad bike accident at Wynyard, in Tasmania's north-west - ABC News
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gold prospector in the Australian bush with his quad in search of gold nuggets with his metal detector Stock Photo - Alamy
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Quad SEGWAY Snarler AT6-S Frais de mise à la route (Montage, carte grise, carburant...) Règlement à la livraison
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