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2. Some research problems in uncertainty theory;Liu;Journalof Uncertain Systems,2009
3. Fuzzy process, hybrid process and uncertain process;Liu;Journal of Uncertain Systems,2008
4. Toward uncertain finance theory;Liu;Journal of UncertaintyAnalysis and Applications,2013
5. An uncertain differentialequation for SIS epidemic model;Li;Journal of Intelligent &Fuzzy Systems,2017