%0 Journal Article %T Moving up and down the Titanium Oxidation State in Ziegler−Natta Catalysis %A Naeimeh Bahri-Laleh %A Andrea Correa %A Shahram Mehdipour-Ataei %A Hassan Arabi %A Mehdi Nekoomanesh %A Zohuri, Gholamhossein %A Luigi Cavallo %J Macromolecules %@ 0024-9297 %D 2011