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		| Paper: | 
		Gaia and Metal-Poor Stars | 
	 
	
		| Volume: | 
		353, Stellar Evolution at Low Metallicity: Mass Loss, Explosions, Cosmology | 
	 
	
		| Page: | 
		387 | 
	 
	
		| Authors: | 
		Gustafsson, B. | 
	 
	
	
		| Abstract: | 
		The expected impact of the Gaia mission on our understanding of metal-poor stars and the formation of the Galactic halo is discussed. It is concluded that substantial ground-based efforts will be needed in order to realise the full potential of the Gaia project with its grand volume of high-precision astrometric and photometric stellar data. | 
	 
	
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