Singh, L. N.; Dattatreya, G. R. (2007). "Estimation of the Hyperexponential Density with Applications in Sensor Networks". International Journal of Distributed Sensor Networks. 3 (3): 311. CiteSeerX10.1.1.78.4137. doi:10.1080/15501320701259925.
Singh, L. N.; Dattatreya, G. R. (2007). "Estimation of the Hyperexponential Density with Applications in Sensor Networks". International Journal of Distributed Sensor Networks. 3 (3): 311. CiteSeerX10.1.1.78.4137. doi:10.1080/15501320701259925.