Title : 
Comment on Design of stable 2-dimensional discrete recursive filters [and reply]
         
        
            Author : 
Prasad, K.P. ; Reddy, P. Sreenivasa ; Ramamoorthy, P.A. ; Bruton, L.T.
         
        
            Author_Institution : 
Indian Institute of Technology, Department of Electrical Engineering, Madras, India
         
        
        
        
        
        
        
            Keywords : 
two-dimensional digital filters; multivariable passive networks; multivariable positive real functions; stability; two dimensional discrete recursive filters;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19770360