Crossref Citations
                  This article has been cited by the following publications. This list is generated based on data provided by Crossref.
                                
                                    
                                    Vershik, A. M.
                                     and 
                                    Yuzvinskii, S. A.
                                  1970.
                                  Mathematical Analysis.
                                  
                                  
                                  
                                  
                                  
                                
                                    p. 
                                    151.
                                
                                
                        
                        
                        
                        
                                
                                    
                                    Halpern, Benjamin
                                  1977.
                                  Strange billiard tables.
                                  
                                  
                                  Transactions of the American Mathematical Society, 
                                  Vol. 232, 
                                  Issue. 0, 
                                
                                    p. 
                                    297.
                                
                                
                        
                        
                        
                        
                                
                                    
                                    Klee, Victor
                                  1979.
                                  Some Unsolved Problems in Plane Geometry.
                                  
                                  
                                  Mathematics Magazine, 
                                  Vol. 52, 
                                  Issue. 3, 
                                
                                    p. 
                                    131.
                                
                                
                        
                        
                        
                        
                                
                                    
                                    Farber, Michael
                                     and 
                                    Tabachnikov, Serge
                                  2002.
                                  Topology of cyclic configuration spaces and periodic trajectories of multi-dimensional billiards.
                                  
                                  
                                  Topology, 
                                  Vol. 41, 
                                  Issue. 3, 
                                
                                    p. 
                                    553.
                                
                                
                        
                        
                        
                        
                                
                                    
                                    Farber, Michael
                                  2002.
                                  Topology of billiard problems, I.
                                  
                                  
                                  Duke Mathematical Journal, 
                                  Vol. 115, 
                                  Issue. 3, 
                                
                                
                                
                        
                        
                        
                        
                                
                                    
                                    Mazzucchelli, Marco
                                  2011.
                                  On the multiplicity of non-iterated periodic billiard trajectories.
                                  
                                  
                                  Pacific Journal of Mathematics, 
                                  Vol. 252, 
                                  Issue. 1, 
                                
                                    p. 
                                    181.
                                
                                
                        
                        
                        
                        
                                
                                    
                                    Zhu, Honglin
                                  2025.
                                  The maximum number of cycles in a triangular-grid billiards system with a given perimeter.
                                  
                                  
                                  Advances in Applied Mathematics, 
                                  Vol. 168, 
                                  Issue. , 
                                
                                    p. 
                                    102888.
                                
                                
                        
                        
                        
                         
  be a plane closed convex curve, and regard
 be a plane closed convex curve, and regard 