Paper (s) having Demo SD, Yellen G (1991) as References
			
			
 
		
		
			
				
						
	
	
	
							
    
    
        
    
    
        
            | 1 | Flaim SN, Giles WR, McCulloch AD (2006) | 
        
            | 2 | Panyi G, Deutsch C (2006) | 
        
            | 3 | Patel SP, Campbell DL (2005) | 
        
            | 4 | Pelz C, Jander J, Rosenboom H, Hammer M, Menzel R (1999) | 
        
            | 5 | Wilkens CM, Aldrich RW (2006) | 
        
            | 6 | Wissmann R, Bildl W, Oliver D, Beyermann M, Kalbitzer HR, Bentrop D, Fakler B (2003) |