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		| Paper: | 
		Inconsistency of Photoionization Models for NGC 5548: Proof of Mechanical Heating? | 
	 
	
		| Volume: | 
		113, Emission Lines in Active Galaxies: New Methods and Techniques, IAU Colloquium 159 | 
	 
	
		| Page: | 
		217 | 
	 
	
		| Authors: | 
		Collin-Souffrin, S.; Dumont, A.-M.; Nazarova, L. | 
	 
	
	
		| Abstract: | 
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