On partially ordered algebras I
Volume 14 / 1966
                    
                    
                        Colloquium Mathematicum 14 (1966), 115-130                    
                                        
                        DOI: 10.4064/cm-14-1-115-130                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            