RAPUNTEAN, Sorin, et al. “ANTIBACTERIAL ACTIVITY OF SILVER NANOPARTICLES OBTAINED BY CO-REDUCTION WITH SODIUM CITRATE AND TANNIC ACID”. Studia Universitatis Babeș-Bolyai Chemia, vol. 63, no. 3, Sept. 2018, pp. 73-85, doi:10.24193/subbchem.2018.3.06.