| article html file updated | 6 February 2020 22:07 CET | Update | https://www.mdpi.com/1424-8220/15/9/20945 |
| article html file updated | 6 May 2019 12:45 CEST | Update | - |
| article html file updated | 26 March 2019 09:26 CET | Update | - |
| article html file updated | 9 October 2015 11:58 CEST | Original file | - |
| article xml file uploaded | 9 October 2015 11:58 CEST | Original file | https://www.mdpi.com/1424-8220/15/9/20945/xml |
| article pdf uploaded. | 2 September 2015 10:11 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/9/20945/pdf |
| article pdf uploaded. | 26 August 2015 09:48 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/9/20945/pdf-vor |
