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		| Paper: | 
		The H_2O Supermaser Emission Region in Orion KL | 
	 
	
		| Volume: | 
		144, Radio Emission from Galactic and Extragalactic Compact Sources, IAU Colloquium 164 | 
	 
	
		| Page: | 
		249 | 
	 
	
		| Authors: | 
		Matveenko, L. I.; Diamond, P. J.; Graham, D. A. | 
	 
	
	
		| Abstract: | 
		We compare spatial structure of the H20 maser during an active period with that during a later quiescent period, received with VLBA in 1993. | 
	 
	
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