ZnO sensing structure for NH3 detection A. Piotrowska, E. Papis, E. Kamińska, K. Gołaszewska, T. Pustelny, E. Maciak and Z. Opilski Eur. Phys. J. Special Topics, 154 (2008) 149-152 Published online: 15 March 2008 DOI: 10.1140/epjst/e2008-00535-0