This article is cited in	 
                         4 papers
                         	
			
				Extremal problems of the theory of positive quadratic forms
		
			B. N. Delone, 	
S. S. Ryshkov		
			UDC:
			512.897	
	        
 
	        	
	        
	        
	  	
 English version:
			Proceedings of the Steklov Institute of Mathematics, 1971, 
112, 
211–231	
			Bibliographic databases:
			 	
	
	
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