1. Development of a Polymer Based Syntactic Foam for High Temperature Applications
2. Westermann, K.: Extrusion of physically blown cellular rubber profiles. RWTH Aachen, Dissertation, 2009 – ISBN: 3-86130-865-7
3. Hopmann, C., Kammer, S., Fey, F., Facklam, M.: Foam Extrusion of Elastomers using Water as Physical Blowing Agent. In: Hopmann, C., Dahlmann, R. (Hrsg.). Advances in polymer processing 2020. Berlin, Heidelberg: Springer Vieweg, 2020, pp. 63–78
4. Shorter, R.: The mechanical behaviour of elastomers when hollow microspheres are used as particulate filler. University of London, PhD, 2014
5. RÖTHEMEYER, F., Sommer, F.: Kautschuktechnologie - Werkstoffe - Verarbeitung - Produkte. München, Wien: Hanser, 2001