%0 Journal Article %T Promotion by supports of the reactivity of propagating species of Ziegler supported catalytic systems for the polymerization and copolymerization of olefins %A Ivanchev, S. S. %A Baulin, A. A. %A Rodionov, A. G. %J Journal of Polymer Science Part A Polymer Chemistry %V 18 %N 7 %P 2045-2050 %@ 0887-624X %D 1980-07-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve