Zheng, X.F., and Q. Lian. “Preparation and Characterization of Magnetic Co0.5Mn0.5Fe2O4-Chitosan Nanoparticles As Surfactants in Oilfield”. Asian Journal of Chemistry 26, no. 14 (July 6, 2014): 4499–4503. Accessed February 2, 2026. https://asianpubs.org/index.php/ajchem/article/view/26_15_76.