Authors
Mohammad R. Sorouhesh
Department of Mathematics, Islamic Azad University, South Tehran Branch,, Tehran, Iran
Colin M. Campbell
School of Mathematics and Statistics, University of St. Andrews, North Haugh,, St. Andrews, UK
© 2017 Mohammad R. Sorouhesh, Colin M. Campbell, published by Ovidius University of Constanta
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.