Authors
C. Brown
School of Mathematical Sciences, University of Nottingham, University Park, Nottingham
S. Pumplün
susanne.pumpluen@nottingham.ac.uk
School of Mathematical Sciences, University of Nottingham, University Park, Nottingham
susanne.pumpluen@nottingham.ac.uk
© 2021 C. Brown, S. Pumplün, published by Ovidius University of Constanta
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.