AVIATION SPORTS, PARACHUTING AND DIF. FLYING DEVICES (SPORT)
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BTSPORTS
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UDC797.5
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Descriptor GERFLUGSPORT, FALLSCHIRMSPORT UND DIV. FLUGGERÄTE (SPORT)
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Descriptor ENGAVIATION SPORTS, PARACHUTING AND DIF. FLYING DEVICES (SPORT)
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Descriptor FRESPORTS AÉRIENS, PARACHUTISME ET D'AUTRES APPAREILS DE VOL (SPORT)
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NTBALLOONING (SPORT)
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NTAVIATION SPORTS + AIRCRAFT SPORTS
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NTAERIAL SPORTS WITH VARIOUS FLYING DEVICES