M. Nazari, N. Ghasemi, H. Maddah, and M. M. Motlagh, “Synthesis and characterization of maghemite nanopowders by chemical precipitation method”, J. Nanostruct. Chem., vol. 4, no. 2 (June 2014), Apr. 2014, doi: 10.1007/s40097-014-0099-9.