1. “Polyhalogenated monoterpenes from Plocamium cartilagineum from the Portuguese coast”, Pedro M.Abreu and José M.Galindro, Journal of Natural Products, 59, 1159-1162 (1996).
2. “Antioxidant Phenolic Glycosides from Moricandia arvensis”, Hatem Braham, Zine Mighri, Hichem Ben Jannet, Susan Matthew, and Pedro M. Abreu, Journal of Natural Products, 68, 517-522 (2005).
3. “New Macrocyclic Lathyrane Diterpenes, from Euphorbia lagascae, as Inhibitors of Efflux Pump of Tumour Cells”, Noélia Duarte, Joseph Molnár, Nora Gyémánt, Pedro M. Abreu, Maria José U. Ferreira, Planta Medica, 72, 162-168 (2006).
4. “Euphoportlandols A and B, tetracylic diterpene polyesters from Euphorbia portlandica and their anti-MDR effects in cancer cells”, Ana M. Madureira, Nora Gyémánt, José R. Ascenso, Pedro M. Abreu, Joseph Molnár, and Maria-José U. Ferreira, Journal of Natural Products, 69, 950-953 (2006).
5. “Tirucallane triterpenes from the roots of Ozoroa insignis”, Yonghong Liu and Pedro Abreu, Phytochemistry, 67, 1309-1315 (2006).
6 “High-Performance Liquid Chromatographic Determination of Glycoalkaloids in Potatoes from Conventional, Integrated, and Organic Crop Systems” Pedro Abreu, Angela Relva, Susan Matthew, Zulmira Gomes, and Zilda Morais, Food Control, 18, 40-44 (2007).
7. “Phenolic constituents of Convolvulus dorycnium L flowers”, Sana Nacef, Hichem Ben Jannet, Pedro Abreu, Zine Mighri, Phytochemistry Letters, 3, 66–69 (2010).