1. Normandie Univ, ENSICAEN UNICAEN CNRS, LaboratoireCatalyse et Spectrochimie 14000 Caen France
2. Faculty of Chemistry and Pharmacy University of Sofia Blvd. J. Bauchier 1 1126 Sofia Bulgaria
3. Total Research and Technology Feluy (TRTF) Zone Industrielle C 7181 Feluy Belgium