Inverter circuits on freestanding flexible substrate using ZnO nanoparticles for cost-efficient electronics
F.F. Vidor, T. Meyers, K. Müller, G.I. Wirth, U. Hilleringmann, Solid-State Electronics 137 (2017) 16–21.

Solution processed inverter based on zinc oxide nanoparticle thin-film transistors with poly(4-vinylphenol) gate dielectric
K. Wolff, U. Hilleringmann, Solid-State Electronics 62 (2011) 110–114.

Mesoscopic transport phenomena in ultrashort channel MOSFETs
G. Wirth, U. Hilleringmann, J.T. Horstmann, K. Goser, Solid-State Electronics 43 (2002) 1245–1250.