| article html file updated | 7 February 2020 21:44 CET | Update | https://www.mdpi.com/1420-3049/22/1/157 |
| article html file updated | 22 September 2019 22:55 CEST | Update | - |
| article html file updated | 4 May 2019 14:36 CEST | Update | - |
| article html file updated | 10 September 2018 10:24 CEST | Update | - |
| article html file updated | 7 February 2017 11:07 CET | Update | - |
| article html file updated | 18 January 2017 12:41 CET | Original file | - |
| article xml uploaded. | 18 January 2017 12:40 CET | Original file | https://www.mdpi.com/1420-3049/22/1/157/xml |
| article pdf uploaded. | 18 January 2017 12:40 CET | Version of Record | https://www.mdpi.com/1420-3049/22/1/157/pdf |
