Sommaire du Fascicule no. 1
        p. 3-18
        
        
        
        
      
    
  Sommaire du Fascicule no. 2
        p. 166-182
        
        
        
        
      
    
  
      
      
        
      
      
  
    
    
    Basis property of a system of eigenfunctions of a second-order differential operator with involution
    
    
  
  
  
        
          
        
      
 
      
        p. 183-196
        
        
        
        
      
    
  
        p. 197-210
        
        
        
        
      
    
  
        p. 228-244
        
        
        
        
      
    
  
        p. 275-294
        
        
        
        
      
    
  Sommaire du Fascicule no. 3
        p. 363-381
        
        
        
        
      
    
  
        p. 396-407
        
        
        
        
      
    
  Sommaire du Fascicule no. 4
        p. 518-531
        
        
        
        
      
    
  
        p. 558-568
        
        
        
        
      
    
  
        p. 612-617
        
        
        
        
      
    
  