1. a Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Czech Republic
2. b Institute of Microelectronics, NCSR – Demokritos , Athens, Greece
3. c Department of Chemistry , Tsinghua University , P.R. China
4. d Department of Organic Chemistry , Prague Institute of Chemical Technology , Prague, Czech Republic
5. e Research Institute for Organic Syntheses , Czech Republic