Boundary-value problems of mathematical physics and related problems of function theory. Part 12
Sommaire
        p. 3-12
        
        
        
        
      
    
  
        p. 233-236
        
        
        
        
      
    
  
        p. 237-239
        
        
        
        
      
    
  
        p. 255-271
        
        
        
        
      
    
  
        p. 294-301
        
        
        
        
      
    
  