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3. D. Czakis-Sulikowska, J. Radwańska-Doczekalska, B. Kuznik and A. Malinowska, Transition Met. Chem., in press.
4. D. Czakis-Sulikowska and J. Radwańska-Doczekalska, VIth Winter School on Coordination Chemistry, Karpacz, Poland, 6–10 December, 1993.
5. D. Czakis-Sulikowska, J. Radwańska-Doczekalska, B. Kużnik and A. Malinowska, 1st International Conference on Progress in Inorganic and Organometalic Chemistry, Polanica Zdrój, Poland, 19–23 September, 1994.