| article html file updated | 7 February 2020 20:18 CET | Update | https://www.mdpi.com/2071-1050/9/1/25 |
| article html file updated | 22 September 2019 15:10 CEST | Update | - |
| article html file updated | 4 May 2019 17:50 CEST | Update | - |
| article html file updated | 7 February 2017 09:42 CET | Update | - |
| article html file updated | 26 December 2016 07:39 CET | Original file | - |
| article xml uploaded. | 26 December 2016 07:38 CET | Update | https://www.mdpi.com/2071-1050/9/1/25/xml |
| article xml uploaded. | 26 December 2016 07:38 CET | Original file | - |
| article pdf uploaded. | 26 December 2016 07:38 CET | Version of Record | https://www.mdpi.com/2071-1050/9/1/25/pdf |
