Razghandi, K.: Passive Hydro-actuated Unfolding of Ice Plant Seed Capsules as a Concept Generator for Autonomously Deforming Devices. Dissertation, Technische Universität Berlin, Berlin (2014)

Eder, M.: Structure, properties and function of single wood fibres of Norway spruce (Picea abies [L.] Karst.). Dissertation, Universität für Bodenkultur, Wien (2007)