Mathematical problems in the theory of wave propagation. Part 8
      
      
        
      
      
  
    
    
    Uniform asymptotic expansions of solutions of the Mathieu equation and the modified Mathieu equation
    
    
  
  
  
        
          
        
      
 
      
        p. 60-91
        
        
        
        
      
    
  
        p. 92-110