| article html file updated | 7 February 2020 15:00 CET | Update | https://www.mdpi.com/1420-3049/21/9/1228 |
| article html file updated | 22 September 2019 00:59 CEST | Update | - |
| article html file updated | 5 May 2019 04:03 CEST | Update | - |
| article html file updated | 17 September 2018 06:53 CEST | Update | - |
| article html file updated | 29 September 2016 08:40 CEST | Update | - |
| article html file updated | 14 September 2016 12:40 CEST | Original file | - |
| article xml uploaded. | 14 September 2016 12:39 CEST | Original file | https://www.mdpi.com/1420-3049/21/9/1228/xml |
| article pdf uploaded. | 14 September 2016 12:39 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/9/1228/pdf |
