| article html file updated | 6 February 2020 22:40 CET | Update | https://www.mdpi.com/1424-8220/15/9/22970 |
| article html file updated | 6 May 2019 11:36 CEST | Update | - |
| article html file updated | 26 March 2019 10:29 CET | Update | - |
| article html file updated | 9 October 2015 11:59 CEST | Update | - |
| article xml file uploaded | 9 October 2015 11:59 CEST | Update | https://www.mdpi.com/1424-8220/15/9/22970/xml |
| article html file updated | 18 September 2015 06:45 CEST | Original file | - |
| article xml file uploaded | 18 September 2015 06:45 CEST | Original file | - |
| article pdf uploaded. | 11 September 2015 10:38 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/9/22970/pdf |
