Zhang, Zhijie, Dongmei Chen, Michael P. Ward, and Qingwu Jiang. 2012. “Transmissibility of the Highly Pathogenic Avian Influenza Virus, Subtype H5N1 in Domestic Poultry: A Spatio-Temporal Estimation at the Global Scale”. Geospatial Health 7 (1):135-43. https://doi.org/10.4081/gh.2012.112.