1. Ulyanovsk State Technical University 32 Severny Venets St. 432027 Ulyanovsk Russia
2. Group of Numerical and Applied Mathematics on Urgent Problems of Heat and Mass TransferSouth Ural State University 76 Lenin Ave. 454080 Chelyabinsk Russia
3. South Ural State University 76 Lenin Ave. 454080 Chelyabinsk Russia
4. Data Recovery Key Laboratory of Sichuan ProvinceNeijiang Normal University Neijiang China
5. Section of Mathematics, Department of Civil EngineeringDemocritus University of Thrace Xanthi Greece
6. General DepartmentNational and Kapodistrian University of Athens Euripus Campus GR34400 Greece