N. Thi Hong, P. T. Thanh Truc, N. Duy Liem, and N. Kim Loi, “Optimal Selection of Number and Location of Meteo-Hydrological Monitoring Networks on Vu Gia – Thu Bon River Basin using GIS”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 6, no. 3, pp. 324–328, May 2016.