L. Pérez Moreno, G. H. Niño Mendoza, B. Mendoza Celedón, M. F. León Galván, L. Robles Hernández, and A. C. González Franco, “Pathogenic viruses incidence, severity and detection in lettuce, in the state of Queretaro, Mexico”, Acta Universitaria, vol. 26, no. 2, pp. 3–11, May 2016, doi: 10.15174/au.2016.842.