A. Kleine and U. Hilleringmann, “Surface Cleaning and Modification by High Intense UV-Irradition for TiO2 Nanoparticle Films in Dye Sensitized Solar Cells,”10.24084/repqj14.238__Renewable Energy and Power Quality Journal, pp. 102–107, 2017, doi:10.24084/repqj14.238 .

S. C. S. Jucá, P. C. M. Carvalho, R. I. S. Pereira, D. Petrov, and U. Hilleringmann, “Design and Implementation of a High Temperature Control Monitoring Applied to Micro Thermoelectric Generators,”10.24084/repqj11.425__Renewable Energy and Power Quality Journal, pp. 712–717, 2017, doi:10.24084/repqj11.425 .

B. Ohms, A. Kleine, and U. Hilleringmann, “Increasing the Efficiency of Solar Cells by Combining Silicon- and Dye Sensitized Devices,”10.24084/repqj10.349__Renewable Energy and Power Quality, pp. 469–473, 2017, doi:10.24084/repqj10.349 .