%0 Journal Article %T Spatial distribution of active Ti species on morphology controlled Mg(OEt)2-based Ziegler-Natta catalyst %A Yuichi Hiraoka %A Dashti, Ali %A Sang Yull Kim %A Toshiaki Taniike %A Minoru Terano %J Current Trends in Polymer Science %@ 0972-446X %D 2009