Rosner, Arie, et al. “Assessing the Applicability of Transcript Conformation Polymorphism for Differentiation Among «Prunus Nocrotic Ringspot Virus» Isolates”. Phytopathologia Mediterranea, vol. 41, no. 2, Aug. 2002, pp. 92-98, doi:10.14601/Phytopathol_Mediterr-1659.