Apró, M., M. Papp, E. Cseh, R. Gáborjányi, J. Horváth, and A. P. Takács. “The Virus Infection of South-Hungarian Corn Fields”. Acta Agraria Debreceniensis, no. 43, Oct. 2011, pp. 52-55, doi:10.34101/actaagrar/43/2637.