Problems of the theory of probability distributions. Part XI
        p. 28-36
        
        
        
        
      
    
  
        p. 51-54
        
        
        
        
      
    
  
        p. 92-97
        
        
        
        
      
    
  
        p. 122-128
        
        
        
        
      
    
  
        p. 129-137
        
        
        
        
      
    
  
        p. 163-169
        
        
        
        
      
    
  