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		| Paper: | 
		A New Grid of Evolutionary Synthesis Models | 
	 
	
		| Volume: | 
		390, Pathways Through an Eclectic Universe | 
	 
	
		| Page: | 
		312 | 
	 
	
		| Authors: | 
		Mollá, M.; García-Vargas, M.L.; Bressan, A.; Gómez-Álvarez, P. | 
	 
	
	
		| Abstract: | 
		We present new evolutionary synthesis models for simple stellar populations covering a wide range in age and metallicity. The most important difference with existing models is the use of NLTE atmosphere models for the hot stars (O, B, WR, post-AGB stars, and planetary nebulae) that have an important impact on the stellar cluster’s ionizing spectra. | 
	 
	
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