Bazula, P.; Arnal, P.; Galeano Nunez, D. C.; Zibrowius, B.; Schmidt, W.; Schüth, F. Highly Microporous Monodisperse Silica Spheres Synthesized by the Stöber Process. Microporous and Mesoporous Materials 2014, 200, 317–325.

Arnal, P. M.; Weidenthaler, C.; Schüth, F. Highly Monodisperse Zirconia-Coated Silica Spheres and Zirconia/Silica Hollow Spheres with Remarkable Textural Properties. Chemistry of Materials 2006, 18, 2733–2739.

Arnal, P. M.; Comotti, M.; Schüth, F. High-Temperature-Stable Catalysts by Hollow Sphere Encapsulation. Angewandte Chemie-International Edition 2006, 45, 8224–8227.

Arnal, P. M.; Schüth, F.; Kleitz, F. A Versatile Method for the Production of Monodisperse Spherical Particles and Hollow Particles: Templating from Binary Core-Shell Structures. Chemical Communications (Cambridge, U. K.) 2006, 1203–1205.

Arnal, P. M. The Synthesis of Monodisperse Colloidal Core@Shell Spheres and Hollow Particles. PhD Thesis, Ruhr-Universität Bochum, Bochum, 2006.