Sharon, Varghese A., and V. S. Vaidyanathan. “Analysis of Simple Step-Stress Accelerated Life Test Data from Lindley Distribution under Type-I Censoring”. Statistica 76, no. 3 (January 1, 2016): 233–248. Accessed July 27, 2021. https://rivista-statistica.unibo.it/article/view/6243.