License - Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) The full text of the license is available here: CC BY-NC 4.0 Legal Code.

You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. NonCommercial — You may not use the material for commercial purposes . No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits. This is just a brief excerpt of the main points of the license. Please refer to the full legal text of the license for a full understanding of its terms.