[Cheng, Jianwen] Hunan City Univ, Coll Informat & Elect Engn, Yiyang 413000, Hunan, Peoples R China.
[Manafian, Jalil] Univ Tabriz, Fac Math Sci, Dept Appl Math, Tabriz, Iran.
[Manafian, Jalil] Lankaran State Univ, Nat Sci Fac, 50 H Aslanov Str, Lankaran, Azerbaijan.
[Singh, Gurpreet; Singh, G] Chitkara Univ, Chitkara Univ Inst Engn & Technol, Dept Appl Sci, Rajpura, Punjab, India.
[Yadav, Anupam] GLA Univ, Dept Comp Engn & Applicat, Mathura 281406, India.