%0 Journal Article %T The Pedagogical Content Knowledge of Middle School, Mathematics Teachers in China and the U.S. %A An, Shuhua %A Kulm, Gerald %A Wu, Zhonghe %J Journal of Mathematics Teacher Education %V 7 %N 2 %P 145-172 %@ 1386-4416 %D 2004-10-18 %I Kluwer Academic Publishers %~ DeepDyve