Angelika Nistler ,  Carolin Hartmann ,  Christine Rümenapp ,  Matthias Opel ,  Bernhard Gleich ,  Natalia P. Ivleva ,  Reinhard Niessner ,  Michael Seidel: Production and characterization of long-term stable superparamagnetic iron oxide-shell silica-core nanocomposites. 2017Journal of Magnetism and Magnetic Materials: 442. http://www.sciencedirect.com/science/article/pii/S0304885317311708