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		| Paper: | 
		Ultrasoft Narrow-Line Seyfert 1 Galaxies: What Physical Parameter Ultimately Drives the Structure and Kinematics of Their Broad Line Regions? | 
	 
	
		| Volume: | 
		175, Structure and Kinematics of Quasar Broad Line Regions | 
	 
	
		| Page: | 
		265 | 
	 
	
		| Authors: | 
		Brandt, W. N.; Boller, Th. | 
	 
	
	
		| Abstract: | 
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