Martins, R., I. Ferreira, and E. Fortunato. "Electronics with and on paper." physica status solidi (RRL)-Rapid Research Letters. 5.9 (2011): 332-335. Abstract
Martins, R., L. Pereira, P. Barquinha, N. Correia, G. Gonçalves, I. Ferreira, C. Dias, and E. FortunatoFloating gate memory paper transistor. OPTO. International Society for Optics and Photonics, 2010. Abstract