Meana, A., M. Llorens-Picher, A. Euba, J. L. Bernal, J. Bernal, M. García-Chao, T. Dagnac, J. A. Castro-Hermida, A. V. Gonzalez-Porto, M. Higes, and R. Martín-Hernández. “Risk Factors Associated With Honey Bee Colony Loss in Apiaries in Galicia, NW Spain”. Spanish Journal of Agricultural Research, Vol. 15, no. 1, Apr. 2017, p. e0501, doi:10.5424/sjar/2017151-9652.