Journal of Organometallic Chemistry, , vol. 3, p. 478 Zhurnal Obshchei Khimii, , vol. 36, p. 158 - 158 Zhurnal Obshchei Khimii, , vol. 36, p. 153 - 157 Zhurnal Obshchei Khimii, , vol. 35, p. 760 - 760 Zhurnal Obshchei Khimii, , vol. 35, p. 757 - 758