1. M. Vieira, M. Fernandes, P. Louro, A. Maçarico, R. Schwarz, M. Schubert, IEEE Sensor J. (August 2001) Vol. 1, No. 2, pp. 158–167.
2. M. Vieira, M. Fernandes, J. Martins, P. Louro, A. Maçarico, R. Schwarz, M. Schubert, in: Amorphous and Heterogeneous Silicon Thin Films-2000, Mat. Res. Soc. Symp. Proc., Vol. 609, San Francisco, USA, 2000.
3. M. Fernandes, P. Louro, J. Martins, A. Maçarico, R. Schwarz, M. Vieira, in: EUROSENSOR XVI, 14th European Conference on Solid-state Transducers, Copenhagen, Denmark, August 27–30, 2000, Sensors and Actuators A 2954 (2001).
4. Low Temperature Deposition of Amorphous Silicon Based Solar Cells
5. P. Blood, J.W. Orton, The electrical characterization of semiconductors: majority carriers and electron state, Techniques of Physics, Vol. 14, ASIN: 0125286279.