1. Ivan Franko National University of Lviv,Department of System Design,Lviv,Ukraine
2. Karpenko Physico-Mechanical Institute of the NAS of Ukraine,Department of Electrophysical Methods of Non-Destructive Testing,Lviv,Ukraine
3. Lviv University of Business and Law,Department of Judiciary, Prosecution and Advocacy,Lviv,Ukraine
4. Lviv University of Business and Law,Department of Business Economy and Information Technology,Lviv,Ukraine