F1 race promoters criticize Liberty's ownership - Racer
- F1 race promoters criticize Liberty's ownership Racer
- Russian GP defends Liberty against "toothless" criticism Motorsport.com
- Why are F1's race promoters upset with Liberty? ESPN
- Formula 1 race organisers express concerns over future of the sport BBC Sport
- Mexican GP promoter distances itself from FOPA views Motorsport.com
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