| article html file updated | 8 February 2020 23:15 CET | Update | https://www.mdpi.com/2071-1050/9/12/2254 |
| article html file updated | 29 September 2019 00:30 CEST | Update | - |
| article html file updated | 2 May 2019 10:23 CEST | Update | - |
| article html file updated | 18 April 2019 08:01 CEST | Update | - |
| article html file updated | 2 January 2018 18:16 CET | Update | - |
| article html file updated | 6 December 2017 07:54 CET | Original file | - |
| article xml uploaded. | 6 December 2017 07:52 CET | Update | https://www.mdpi.com/2071-1050/9/12/2254/xml |
| article xml uploaded. | 6 December 2017 07:52 CET | Update | - |
| article xml uploaded. | 6 December 2017 07:52 CET | Original file | - |
| article pdf uploaded. | 6 December 2017 07:52 CET | Version of Record | https://www.mdpi.com/2071-1050/9/12/2254/pdf |
