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		| Paper: | 
		Proper Motions and Jets in NGC 4258: Further Evidence for a Sub-Parsec Nuclear Disk | 
	 
	
		| Volume: | 
		144, Radio Emission from Galactic and Extragalactic Compact Sources, IAU Colloquium 164 | 
	 
	
		| Page: | 
		213 | 
	 
	
		| Authors: | 
		Herrnstein, J. R. | 
	 
	
	
		| Abstract: | 
		The evidence for a subparsec-scale disk in the nucleus of NGC 4258 is reviewed in the context of multi-epoch VLBA observations. The detection of jet continuum emission and of maser proper motions in these data bolster the case for a nuclear disk. | 
	 
	
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