Cesari, C., M.E. Colucci, and L. Veronesi et al. 2010. “Detection of Enteroviruses from Urban Sewage in Parma”. Acta Biomedica Atenei Parmensis 81 (1): 40-46. https://mattioli1885journals.com/index.php/actabiomedica/article/view/309.