中国科学院数学与系统科学研究院期刊网
Descartes' Law of Signs for Generalized Polynomials and Its Application in the Method of Descent
Yong YAO Jia XU Chengdu Institute of Computer Applications,Chinese Academy of Sciences, Chengdu 610041,P.R.China
Acta Mathematica Sinica, Chinese Series . 2009, (04): 3 -8 .  DOI: 10.12386/A2009sxxb0078