DARCOVICH, K.; TUNNEY, J.; DUNFORD, J.; STYLES, L.; XIAO, G.; CONSTANT, A. Coupled Gas Flow, Diffusion and Reaction in a ppb-level SnO2-NiO Formaldehyde Sensor System. The International Journal of Multiphysics, v. 5, n. 2, p. 101-114, 30 Jun. 2011.