| article html file updated | 7 February 2020 18:46 CET | Update | https://www.mdpi.com/2079-4991/6/12/228 |
| article html file updated | 22 September 2019 07:32 CEST | Update | - |
| article html file updated | 4 May 2019 21:02 CEST | Update | - |
| article html file updated | 30 December 2016 02:00 CET | Update | - |
| article html file updated | 29 November 2016 10:38 CET | Original file | - |
| article xml uploaded. | 29 November 2016 10:37 CET | Update | https://www.mdpi.com/2079-4991/6/12/228/xml |
| article xml uploaded. | 29 November 2016 10:37 CET | Original file | - |
| article pdf uploaded. | 29 November 2016 10:37 CET | Version of Record | https://www.mdpi.com/2079-4991/6/12/228/pdf |
