| article html file updated | 7 February 2020 18:44 CET | Update | https://www.mdpi.com/2079-4991/6/12/226 |
| article html file updated | 22 September 2019 07:26 CEST | Update | - |
| article html file updated | 4 May 2019 21:05 CEST | Update | - |
| article html file updated | 30 December 2016 01:59 CET | Update | - |
| article html file updated | 29 November 2016 08:52 CET | Original file | - |
| article xml uploaded. | 29 November 2016 08:50 CET | Update | https://www.mdpi.com/2079-4991/6/12/226/xml |
| article xml uploaded. | 29 November 2016 08:50 CET | Original file | - |
| article pdf uploaded. | 29 November 2016 08:50 CET | Version of Record | https://www.mdpi.com/2079-4991/6/12/226/pdf |
