R.M. Ion, C.Radulescu, I. Dulama, I. A. Bucurica, A. I. Gheboianu, R. M.Stirbescu, S. Teodorescu, L. Iancu, M. E. David, R. M. Grigorescu

DN-12 and NRT facility (IBR-2 pulsed reactor, Dubna, Russia), National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Evaluation and Conservation of Cultural Heritage Research Group, (Bucharest, Romania), Valahia University of Targoviste (Targoviste, Romania)