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World Athletics denies tipping off Nike over new running-shoe regulations | Athletics | The Guardian
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World Athletics Announces New Shoe Rules; Nike Alphaflys Are Banned But Vaporflys and Next% Are Ok - LetsRun.com
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World Athletics to allow 'development shoes' if they meet technical specifications - Sportstar - Sportstar
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World Athletics gives seal of approval for controversial Nike Vaporfly shoes | Athletics | The Guardian
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World Athletics claims there was no Nike 'tip off' about shoe regulations - Canadian Running Magazine
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Nike Vaporflys: World Athletics set to clamp down on 'technological doping' | The Independent | The Independent
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