This survey does not accept new answers. In the following link you can access the pdf version of the questions: https://owncloud.fraunhofer.de/index.php/s/IejTnmKYhtx0FNK

Thank you very much to all the participants for your collaboration, your support has been of great help for our research ;)

If you are interested in the subject and would like to be kept informed of our progress, please do not hesitate to contact us.

Best regards,

Nadia Hammoudeh Garcia (nadia.hammoudeh.garcia@ipa.fraunhofer.de)