| article html file updated | 7 February 2020 14:46 CET | Update | https://www.mdpi.com/1420-3049/21/9/1204 |
| article html file updated | 22 September 2019 00:44 CEST | Update | - |
| article html file updated | 5 May 2019 04:30 CEST | Update | - |
| article html file updated | 17 September 2018 06:44 CEST | Update | - |
| article html file updated | 29 September 2016 08:37 CEST | Update | - |
| article html file updated | 9 September 2016 13:55 CEST | Original file | - |
| article xml uploaded. | 9 September 2016 13:54 CEST | Original file | https://www.mdpi.com/1420-3049/21/9/1204/xml |
| article pdf uploaded. | 9 September 2016 13:54 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/9/1204/pdf |
