"Masataka Oishi,Reiji Yoshimura,Nobuyoshi Nomura","Dinuclear Pentacoordinated Organoyttrium Biphenolates as Initiators for the Synthesis of High-Molecular Weight Isotactic Poly(2-vinylpyridine)",,"Inorganic Chemistry","American Chemical Society","Vol. 58","No. 20","pp. 13755-13760",2019,Oct.