"Single and multiple dip-coating process of colloidal maghemite (γ-Fe2O3) nanoparticles on various substrates (Si, Si3N4, and SiO2)"
T.-S. Yoon, J. Oh, S.-H. Park, V. Kim, B.G. Jung, S.-H. Min, J. Park, T. Hyeon, and K.-B. Kim* , Advanced Functional Materials 14, 1062 (2004)