1. J. Heyrovský
Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, Prague, Czech Republic
2. Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo n. 2, Prague, Czech Republic
3. Institute of Chemistry of Organometallic Compounds, CNR, via Moruzzi 1, Pisa, Italy
4. Université Paris-Diderot, 15 Jean de Baïf, Paris, France