Authors
Iwona Bąk
Ph.D., Associate Professor, West Pomeranian University of Technology in Szczecin Department of Applied Mathematics in Economics Janickiego 31, 71-270, Szczecin, Poland
Katarzyna Cheba
Ph.D. West Pomeranian University of Technology in Szczecin Department of Applied Mathematics in Economics Janickiego 31, 71-270, Szczecin, Poland