[Wu, Juan; Wei, YY; Wei, Yao-Yao; Xie, Tian] Univ South China, Sch Econ Management & Law, Hengyang, Hunan, Peoples R China.
[Chen, Wei-Fan] Penn State Univ, Informat Sci & Technol, State Coll, PA USA.
[Wei, YY; Wei, Yao-Yao] Cent China Normal Univ, Sch Educ, Wuhan, Hubei, Peoples R China.
[Chen, Krista] Penn State Univ, Coll Commun, State Coll, PA USA.