%0 Journal Article %T Cooperative effect through different bridges in nickel catalysts for polymerization of ethylene %A Mostafa Khoshsefat %A Abbas Dechal %A Saeid Ahmadjo %A S. Mohammad M. Mortazavi %A Zohuri, Gholamhossein %A Joao B.P. Soares %J Applied Organometallic Chemistry %@ 0268-2605 %D 2019