Okutsu invariants and Newton polygons
Tom 145 / 2010
                    
                    
                        Acta Arithmetica 145 (2010), 83-108                    
                                        
                        MSC: Primary 11S15; Secondary 11Y05, 11Y40.                    
                                        
                        DOI: 10.4064/aa145-1-5