| article html file updated | 7 February 2020 22:13 CET | Update | https://www.mdpi.com/2079-4991/7/2/26 |
| article html file updated | 23 September 2019 01:31 CEST | Update | - |
| article html file updated | 4 May 2019 13:36 CEST | Update | - |
| article html file updated | 2 March 2017 08:59 CET | Update | - |
| article html file updated | 25 January 2017 10:39 CET | Original file | - |
| article xml uploaded. | 25 January 2017 10:38 CET | Update | https://www.mdpi.com/2079-4991/7/2/26/xml |
| article xml uploaded. | 25 January 2017 10:38 CET | Original file | - |
| article pdf uploaded. | 25 January 2017 10:38 CET | Version of Record | https://www.mdpi.com/2079-4991/7/2/26/pdf |
