License Agreements

The use of papers published from April 2016 onwards is licensed under the Creative Commons License - Attribution 4.0 International (CC BY 4.0).

Brief summary of the agreement

You are free 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.

The licensor cannot revoke these freedoms as long as you follow the license terms.

Under the following terms:

  • AttributionYou 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.

    What does "Attribute this work" mean?
    The page you came from contained embedded licensing metadata, including how the creator wishes to be attributed for re-use. You can use the HTML here to cite the work. Doing so will also include metadata on your page so that others can find the original work as well.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

The use of papers published from 2013 to March 2016 is licensed under the Creative Commons License - Attribution 3.0. 

The use of papers published from 2007 to 2012 is licensed under the Creative Commons License - Attribution-NonCommercial 2.0 Germany.