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		| Paper: | 
		Temporal variation of activity of the soft X-ray transient Aql X--1 | 
	 
	
		| Volume: | 
		261, The Physics of Cataclysmic Variables and Related Objects | 
	 
	
		| Page: | 
		549 | 
	 
	
		| Authors: | 
		šimon, V. | 
	 
	
	
		| Abstract: | 
		The analysis of the recurrence time TC of the outbursts in Aql X--1, using the method of the O-C residuals, revealed that the character of the O-C curve bears a large similarity to the dwarf novae. The prevailing value of TC is 211 days but several large jumps occurred. | 
	 
	
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