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		| Paper: | 
		Optical Monitoring of Seyfert Galaxies and Quasar Nuclei in 1998 | 
	 
	
		| Volume: | 
		215, Cosmic Evolution and Galaxy Formation: Structure, Interactions and Feedback | 
	 
	
		| Page: | 
		219 | 
	 
	
		| Authors: | 
		Shapovalova, Alla; Burenkov, Alexander; Spiridonova, Olga; Vlasyuk, Valery; Mikhailov, Valery; Carrasco, Luis; Chavushyan, José; Valdés, Vahram; Bochkarev, Nicolai; Doroshenko, Valentina; Lyuty, Victor; Ezhkova, Olga; Martinez, Oscar | 
	 
	
	
		| Abstract: | 
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