On the Strategic Equivalence of Extensive Form Games
论证Thompson的四种基本变换中，膨胀-收缩变换会改变博弈的策略特征，而其余两种变换加上第三种变换的修改足以将任何具有完美回忆的有限扩展形式博弈简化为其简化标准形式。
It is argued that of Thompson′s four elementary transformations, one (inflate–deflate) does not leave the strategic features of a game unchanged. It is shown, however, that two of the remaining transformations together with a modification of the third suffice for the purpose of reducing any finite extensive form game having perfect recall to its reduced (normal) form. Journal of Economic Literature Classification Number: C72.