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2. III;Ashe;Organometallics,1983
3. Jr;Tokitoh;Am Chem Soc,1997
4. Translated by New York;Kalinowski;Carbon Spectroscopy,1986
5. a For reviews see a;Yoshifuji;Am Chem Soc Rev Am Chem Soc Am Chem Soc Phosphorus Sulfur Inorg Chem Tetrahedron Lett,1981