中国科学院数学与系统科学研究院期刊网
Oscillation Criteria for mth Order Neutral Functional Difference Equations
Jin Fa CHEN(1),Z. ANNIE(2)
Acta Mathematica Sinica, Chinese Series . 2002, (6): 1207 -121 .  DOI: 10.12386/A2002sxxb0156