FELKER, P.; BUNCH, R.; RUSSO, G.; PRESTON, K.; TINE, J. A.; SUTER, B.; XIAOHAN, M.; CUSHMAN, J. C.; YIM, W. C. Biology and chemistry of an Umbravirus like 2989 bp single stranded RNA as a possible causal agent for Opuntia stunting disease (engrosamiento de cladodios) - A Review. Journal of the Professional Association for Cactus Development, [S. l.], v. 21, p. 1–31, 2020. DOI: 10.56890/jpacd.v21i.3. Disponível em: https://jpacd.org/jpacd/article/view/3. Acesso em: 6 oct. 2025.