S.A. Cummings, J.A. Tunge and J. R. Norton: Synthesis and Reactivity of Zirconaaziridines -- M. Mori: Synthesis and Reactivity of Zirconium-Silene Complexes -- A. Lisovskii, M.S. Eisen: Octahedral Zirconium Complexes as Polymerization Catalysts -- J. Szymoniak, P. Bertus: Zirconocene Complexes as New Reagents for the Synthesis of Cyclopropanes -- N. Chinkov, I. Marek: Stereoselective Synthesis …