Bernard, B.; Bustillos, J.; Wade, B.; Hidalgo, S. Influence of the Wind Direction Variability on the Quantification of Tephra Fallouts: December 2012 and March 2013 Tungurahua Eruptions. ACI Av. Cienc. Ing. (Quito) 2013, 5 (1). https://doi.org/10.18272/aci.v5i1.112.