Authors
M. Bisi
Department of Mathematics and Computer Science, University of, Parma, Italy
G. Spiga
Department of Mathematics and Computer Science, University of, Parma, Italy
© 2017 M. Bisi, G. Spiga, published by Italian Society for Applied and Industrial Mathemathics
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.