1. J.F.K. Before, Lee Harvey Oswald tried to kill an army Major General.
www.smithsonianmag.com/smart-news/before-jfk-lee-harvey-oswald-tried-to-kill-an-army-major-general-609517/
. Smithsonian Magazine. Accessed 15 Aug 2019
2. I.R. Goodman, H.T. Nguyen, Uncertainty Models for Knowledge-Based Systems; A Unified Approach to the Measurement of Uncertainty (Elsevier Science Inc., New York, NY, USA, 1985)
3. W.M. Briggs, in Beyond Traditional Probabilistic Methods in Economics, ed. by V. Kreinovich, N. Thach, N. Trung, D. Thanh (Springer, New York, 2019), pp. 22–44
4. H.T. Nguyen, in Integrated Uncertainty in Knowledge Modelling and Decision Making (Springer, 2016), pp. 3–15
5. H.T. Nguyen, A. Walker, in Advances in the Dempster-Shafer Theory of Evidence (Wiley, 1994) (forthcoming)