| article html file updated | 7 February 2020 21:58 CET | Update | https://www.mdpi.com/2071-1050/9/1/160 |
| article html file updated | 23 September 2019 00:08 CEST | Update | - |
| article html file updated | 4 May 2019 14:06 CEST | Update | - |
| article html file updated | 7 February 2017 10:23 CET | Update | - |
| article html file updated | 22 January 2017 09:30 CET | Original file | - |
| article xml uploaded. | 22 January 2017 09:29 CET | Original file | https://www.mdpi.com/2071-1050/9/1/160/xml |
| article pdf uploaded. | 22 January 2017 09:29 CET | Version of Record | https://www.mdpi.com/2071-1050/9/1/160/pdf |
