SHEN Kun CHENGYanjun NIU Yuan. [J]. Journal of Beijing Normal University(Natural Science), 2013, 49(2): 425-429.
Citation: SHEN Kun CHENGYanjun NIU Yuan. [J]. Journal of Beijing Normal University(Natural Science), 2013, 49(2): 425-429.
  • loading

Catalog

    Turn off MathJax
    Article Contents

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return
    Baidu
    map