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Siverio de la Rosa, Felipe (2007). "Situación de Trioza erytreae en Canarias"(PDF) (in Spanish). Plant Health Laboratory - Canary Islands Ins of Ag Res. Archived from the original(PDF) on 2009-12-13. Retrieved 2014-10-22 – via Valencian Institute of Agricultural Research.
Siverio de la Rosa, Felipe (2007). "Situación de Trioza erytreae en Canarias"(PDF) (in Spanish). Plant Health Laboratory - Canary Islands Ins of Ag Res. Archived from the original(PDF) on 2009-12-13. Retrieved 2014-10-22 – via Valencian Institute of Agricultural Research.