NHU, Hoang huu. The estimation of the stability of the characterization of the exponential distribution. Lithuanian Mathematical Journal, [S. l.], v. 8, n. 1, p. 175–177, 1968. DOI: 10.15388/LMJ.1968.20191. Disponível em: https://www.journals.vu.lt/LMJ/article/view/20191. Acesso em: 14 apr. 2025.