| CC BY NC | OPENAIRE |
| CC BY-NC 4.0 | OPENAIRE |
| Creative Commons Attribution-Non Commercial 4.0 | OPENAIRE |
| cc-by-nc | OPENAIRE |
| cc_by_nc | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/2.0 | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/2.0/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/2.0/at | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/2.0/at/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/2.0/uk | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/2.0/uk/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/2.5 | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/2.5/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/2.5/ar | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/2.5/ar/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/3.0 | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/3.0/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/3.0/br/deed.pt_BR | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/3.0/es | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/3.0/es/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/3.0/it/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/3.0/us/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0 | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0/ | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0/This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0/This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (http://us.sagepub.com/en-us/nam/open-access-at-sage). | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/ (http://creativecommons.org/licenses/by-nc/4.0/) ) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ (http://creativecommons.org/licenses/by-nc/4.0/) . | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (http://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0/deed.es | OPENAIRE |
| http://creativecommons.org/licenses/by-nc/4.0/legalcode | OPENAIRE |
| http://dcat-ap.de/def/licenses/cc-by-nc | OPENAIRE |
| http://dcat-ap.de/def/licenses/cc-by-nc-de/3.0 | OPENAIRE |
| http://dcat-ap.de/def/licenses/cc-by-nc/4.0 | OPENAIRE |
| http://spdx.org/licenses/CC-BY-NC-1.0.html#licenseText | OPENAIRE |
| http://spdx.org/licenses/CC-BY-NC-2.0.html#licenseText | OPENAIRE |
| http://spdx.org/licenses/CC-BY-NC-2.5.html#licenseText | OPENAIRE |
| http://spdx.org/licenses/CC-BY-NC-3.0.html#licenseText | OPENAIRE |
| http://spdx.org/licenses/CC-BY-NC-4.0.html#licenseText | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/2.0 | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/2.5/ar/ | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/3.0 | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/3.0/ | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/3.0/deed | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/3.0/es | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/3.0/legalcode | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/4.0 | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/4.0/ | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/4.0/deed | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/4.0/deed.de | OPENAIRE |
| https://creativecommons.org/licenses/by-nc/4.0/legalcode | OPENAIRE |