Copyright notice
  This work is licensed under CC BY-SA 4.0

1. Article published in Edelweiss are under licensed  https://creativecommons.org/licenses/by-sa/4.0/ license. You are free to copy and redistribute the material in any medium or format for any purpose, even commercially, provided you give appropriate credit to the original author(s) and Edelweiss, link to the license, indicate if changes were made, and redistribute any derivative work under the same license.
2. Copyright on articles is retained by the respective author(s), without restrictions. A non-exclusive license is granted to Edelweiss to publish the article and identify itself as its original publisher, along with the commercial right to include the article in a hardcopy issue for sale to libraries and individuals.
3. By publishing in Edelweiss, authors grant any third party the right to use their article to the extent provided by the Creative Commons Attribution-ShareAlike 4.0 International license.