1. Department of Synthesis and Characterization of Polymers; Polymer Institute of SAS; Dúbravská cesta 9 Bratislava 845 41 Slovakia
2. Department of Nuclear Physics; Institute of Physics of SAS; Dúbravská cesta 9 Bratislava 845 11 Slovakia
3. Institute of Applied Synthetic Chemistry; TU Wien, Getreidemarkt 9/163 MC 1060 Vienna Austria
4. Institute of Materials Science and Technology; TU Wien, Getreidemarkt 9/308 1060 Vienna Austria
5. Christian-Doppler-Laboratory for Photopolymers in Digital and Restorative Dentistry; Getreidemarkt 9 1060 Vienna Austria