Torres CM, Pico Y, Marin R, Manes J (1997)
Evaluation of organophosphorus pesticide residues in citrus fruits from the Valencian community (Spain)
Journal of AOAC International 80: 1122
Torres CM, Pico Y, Redondo MJ, Manes J (1996)
Matrix solid-phase dispersion extraction procedure for multiresidue pesticide analysis in oranges
Journal of Chromatography A 719: 95