Copyright

From 2023 under Creative Commons conditions (CC BY 4.0)
Until 2012 under Creative Commons conditions (CC BY-NC-SA 4.0)
Copyright: The authors are the copyright holders, without restrictions, of their articles.

The licenses are informed on the article access page and detailed below:

Under the CC-BY 4.0 license, you have the right to:

Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material for any purpose, even commercially.

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.

Under the CC-BY-NC-SA 4.0 license, you have the right to:

Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material

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
ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.

No additional restrictions - You may not apply legal terms or technological measures that legally restrict others from doing anything that the license permits.

Notice
For any reuse or distribution, you must make clear to third parties the terms of the license to which this work is subject.