Rietveld refined structural and sintering temperature dependent electromagnetic properties of Al3+ substituted Ni–Co ferrites prepared through sol–gel auto combustion method for high-frequency and microwave devices. - Rahman, M. M.; Ullah, M. Hedayet; Tabassum, S.; Hoque, M. A.; Harun-Or-Rashid, M. (Journal of Materials Science: Materials in Electronics, 2024)