A Reitveld quantitative XRD phase-analysis of selected composition of the Sr(0.5+x)Sb(1−x)Fe(1+x)(PO4)3(0 < x < 0.50) systemA. Aatiq, R. Tigha, A. Attaoui, N. Nadi and A. El BouariMATEC Web of Conferences, 5 (2013) 04018DOI: https://doi.org/10.1051/matecconf/20130504018