| article html file updated | 8 February 2020 18:47 CET | Update | https://www.mdpi.com/2071-1050/9/10/1857 |
| article html file updated | 27 September 2019 20:25 CEST | Update | - |
| article html file updated | 2 May 2019 20:31 CEST | Update | - |
| article html file updated | 3 November 2017 04:49 CET | Update | - |
| article html file updated | 18 October 2017 14:31 CEST | Original file | - |
| article xml uploaded. | 18 October 2017 14:30 CEST | Update | https://www.mdpi.com/2071-1050/9/10/1857/xml |
| article xml uploaded. | 18 October 2017 14:30 CEST | Original file | - |
| article pdf uploaded. | 18 October 2017 14:30 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/10/1857/pdf |
