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2. Fuzzy process, hybrid process and uncertain process;Liu;Uncertain Syst.,2008
3. Toward uncertain finance theory;Liu;J. Uncertain. Anal. Appl.,2013
4. Some research problems in uncertainty theory;Liu;J. Uncertain Syst.,2009
5. Uncertain optimal control with application to a portfolio selection model;Zhu;Cybern Syst.,2010