On a class of mixed boundary value problems for linear hyperbolic equations
Volume 47 / 1982
                    
                    
                        Colloquium Mathematicum 47 (1982), 123-142                    
                                        
                        DOI: 10.4064/cm-47-1-123-142                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            