@article{article8baf9263,
title   = {Synthesis and catalytic activity in ethylene polymerization of cyclopentadienylterbium dibromides with pyrazole or triphenylphosphine ligand},
author = {Maia, Alessandra de Souza and Paulino, Ícaro Sampaio and Schuchardt, Ulf and Oliveira, Wanda de},
year = {2003},
doi = {10.1016/s1387-7003(02)00760-8},
journal   = {Inorganic Chemistry Communications}
}