Authors
Fernando Serrano
Central American Technical University (UNITEC), Tegucigalpa, Honduras
Josep M. Rossell
Department of Mathematics, Universitat Politècnica de Catalunya (UPC), Manresa, Spain
© 2017 Fernando Serrano, Josep M. Rossell, published by Bialystok University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.