Darcovich, K., J. Tunney, J. Dunford, L. Styles, G. Xiao, and A. Constant. “Coupled Gas Flow, Diffusion and Reaction in a Ppb-Level SnO2-NiO Formaldehyde Sensor System”. The International Journal of Multiphysics, vol. 5, no. 2, June 2011, pp. 101-14, doi:10.1260/1750-9548.5.2.101.