Ristanović, E., Gligić, A., Atanasievska, S., Protić-Djokić, V., Jovanović, D. and Radunović, M. (2017) “Smallpox as actual biothreat: lessons learned from its outbreak in ex-Yugoslavia in 1972”, Annali dell’Istituto Superiore di Sanità. Rome, IT, 52(4), pp. 587–597. Available at: https://annali.iss.it/index.php/anna/article/view/444 (Accessed: 3 April 2025).