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China Launches Beidou, Its Own Version of GPS - IEEE Spectrum
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China decouples from US in space with 2020 'GPS' completion - Nikkei Asia
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US-China tech war: China's GPS rival BeiDou poised to support industry worth US$156 billion by 2025 | South China Morning Post
Has China Pre-Positioned to Attack GPS Satellites?
GPS.gov: Image Library
US Navy Developing Satellite-Independent Navigation System
China's version of GPS now has more satellites than US original - Nikkei Asia
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China Launches Beidou GPS System, Set to Rival US GPS
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