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		| Paper: | 
		Excitation Mechanism of Extended Emission-Line Regions in Active Galaxies | 
	 
	
		| Volume: | 
		113, Emission Lines in Active Galaxies: New Methods and Techniques, IAU Colloquium 159 | 
	 
	
		| Page: | 
		386 | 
	 
	
		| Authors: | 
		Evans, Ian; Koratkar, Anuradha; Allen, Mark; Tsvetanov, Zlatan; Dopita, Michael | 
	 
	
	
		| Abstract: | 
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